Search

Hydrogen will play a key part in the decarbonization of the global energy supply as the wealth of hydrogen continues to rise. However, applying hydrogen knowledge necessitates the installation of strong safety protocols, including the use of reliable hydrogen gas-detecting devices. Gas detection and monitoring at a large scale in industries need programmable electronic systems that can provide fast response and switching. The objective of the research work is to analyze the hydrogen gas detection system using a field programmable gate array (FPGA). The system is integrated with the gas sensor module, temperature control module, buzzer for alarm, liquid crystal display (LCD) and light-emitting diode (LED) for information display, and global system for mobile communication (GSM) for wireless message communication to the mobile. The temperatures module works on the sampling of the heater resistance using a voltage divider and inbuilt analog-to-digital converter (ADC), which depend on the output voltage of the digital-to-analog converter (DAC). The comparator module compares the gas concentration with the pre-decided threshold limit and acknowledges the buzzer accordingly. The system behavior for monitoring and gas concentration detection is simulated in Xilinx Vivado design suite 2020.1. The functionality of the chip is also verified in the Modelsim 10.0 waveform simulator. for the testbench tata sand samples used. LCD (16x2) displays the messages whether hydrogen gas is detected or not and the same message is delivered on mobile. The novelty of the work is that the system is applicable for faster switching in industrial applications and the designed system supported 550 MHz frequency in our simulation and synthesis. [Display omitted] • Hydrogen gas detection and monitoring using FPGA for programmable electronic device switching. • Integration of gas sensor, temperature sensor, alarm, LCD, and GSM wireless communication. • Supports 550 MHz frequency for fast switching operations. • Chip assessment for hydrogen leakage identification, and validation on FPGA hardware. [ABSTRACT FROM AUTHOR]

The research of narrow band green emitter with excellent luminescent property is regarded as a very significant innovation direction for light-emitting diodes (LED) backlights in liquid crystal displays (LCDs). Herein, a high-efficiency near-ultraviolet (n-UV) excitation Mn2+ doped green phosphor NaGa 11 O 17 : Mn2+ phosphor is obtained based on the strong charge transfer absorption located in the n-UV region. The optimal sample exhibits a high color purity green light emission(≈89.7%) centered at 505 nm with a full width at half maximum (FWHM) around 29 nm. The absorption efficiency (AE), internal quantum efficiency (IQE) and external quantum efficiency (EQE) of optimal sample are 69.8%, 80.4% and 56.1%, respectively. In addition, the doping of Al3+ significantly improves the thermal stability (26.9%–80.1% at 150 °C) by enhancing the electron recombination process. Using NGO: Mn2+ and commercial β-sialon:Eu2+ dual green phosphors as green component fabricated with BAM: Eu2+, KSF: Mn4+ and 310 nm LED chips shows a wide color gamut of 125% NTSC. These findings suggest that our material may find use in LED backlights for liquid crystal displays and provide a meaningful reference for the development of new narrowband emitters. A high-efficiency near-ultraviolet excited narrow-band emission phosphor NGAO:Mn2+ is achieved via a strong charge transfer absorption for wide color gamut WLED application. [Display omitted] [ABSTRACT FROM AUTHOR]

Liquid crystal display (LCD)-based 3D printing, a precise and surface-smooth technology, has found widespread use in dentistry due to its exceptional precision and surface quality. This research endeavors to create a scaffold through 3D printing using bone graft materials, specifically addressing the challenge of molding bone graft powders to fit defect areas in dental surgery. Our approach involved developing biphasic calcium phosphate (BCP) scaffolds by regulating the sintering temperature of an HA-based green body. Initially, by using wet ball mill technology, HA slurries with 30 %, 40 %, and 50 % HA content by weight were prepared and exhibited viscosities below 0.15 Pa s. Subsequently, these slurries were 3D printed via an LCD-based VP printer. The utilization of submicron-sized HA particles played a critical role in maintaining slurry stability and preventing sedimentation during the printing process. We investigated sintering temperatures of 1100 °C, 1200 °C, and 1300 °C, discovering that submicron-sized HA particles enabled precise alignment of the decomposition temperature with the typical HA sintering range. Consequently, we achieved the production of BCP scaffolds with adjustable properties by tuning the sintering temperature. Subsequent analysis delved into scaffold shrinkage, mechanical characteristics, degradation behavior, and biological responses. Among the sintered scaffolds, the 50 % HA slurry printed and sintered at 1200 °C exhibited the highest compressive strength. The cell viabilities of these sintered scaffolds consistently met the ISO 10993-5 standard, affirming their biocompatibility. Moreover, the biological responses of MG63 cells demonstrated that the sintered scaffolds not only exhibited cytocompatibility but also facilitated strong cell attachment and proliferation. Furthermore, scaffolds sintered at 1300 °C containing TCP showed the formation of a layer of HA with plate-like structures due to ion-induced precipitation, indicating their bioactivity. In conclusion, this study highlights the promising potential of LCD-based VP 3D printing technology for ceramic slurries, with clear implications for clinical applications in bone tissue engineering. [ABSTRACT FROM AUTHOR]

[Display omitted] Metal halide perovskites films have attracted great interest because of their solution-proceed fabrication and potential applications for next-generation displays. However, their non-ideal photoluminescence quantum efficiency (PLQE) and stability still does not meet the requirements of displays. Here, we adopt lanthanum ion (La3+) doping strategy to enhance its luminescence performance and the possibility of taking it to commercialization. In addition to the entry of lanthanum ions into the lattice to greatly improve the crystal quality, the excess La3+ gives rise to the formation of newly developed formamidinium cesium lanthanum bromine, (FA, Cs) 2 LaBr 5 , which provides additional energy transport pathways, therefore concentrating more energy onto the perovskite host. Consequently, a near-unity PLQE of 99.5% is realized in standardized green-emission cesium (Cs)/formamidinium (FA) mixed FA 0.7 Cs 0.3 PbBr 3 perovskite films. The introduction of La3+ can also lead to markedly stability with nearly 1000 days' shelf storage half-lifetime and 400 hours' light-irradiation T 90 lifetime as well as much-enhanced color purity. Moreover, the films with La3+ doping enable full-visible spectral enhancement and high-performance white light emission and trichromatic luminescence with 98.9% coverage of the color gamut area required for the Rec. 2020 standard, which suggest that perovskite films have great application potential for backlights in liquid crystal display technologies. [ABSTRACT FROM AUTHOR]

Although backlight display screens based on CdSe quantum dots (QDs) have basically solved the remaining problem of small display gamut, its high preparation cost limits its commercial development. In contrast, perovskite nanocrystals (NCs) with narrow band emission, simple preparation and low cost have made leaps and bounds in next-generation backlit displays luminescent material. However, the instabilities are the main issues to solve before we can apply these materials in modern displays. Researchers have precipitated perovskite NCs in inorganic glass substrates and compounded them with PDMS films for backlighting, but the important factors for commercialization have been ignored: Long-term stability under strong blue light irradiation and preparation cost. In this work, a unique melt-water quenching method combined with composition control was applied to prepare a series of glass powder. The optimal photoluminescence (PL) emission and color coordinates in the color coordinates of glasses powder were elaborately regulated by heat treatment temperature control and the introduction of rare earth Tb. Moreover, the passivation of the glass powder surface through special water treatment greatly improves its stability under long time blue light exposure. After irradiation under 20000 cd/m2 blue light (460 nm) for 500 h, the PL intensity retention rate reaches 85% of commercial CdSe film. The red and green-emitting NCs glasses powder with high photoluminescence quantum yield (PLQY) and stability were combined with PET, PS and PDMS to form a composite film, afterwards, combined with Liquid crystal display (LCD) module shows a fuller color image. Finally, after comparison, PS film was demonstrated to be the most suitable choice for commercialization backlighting. [ABSTRACT FROM AUTHOR]

White light diodes (WLEDs) composed of blue chip and phosphor-converter are widely used in liquid crystal display (LCD) projectors as backlights. And it often needs a condenser lens to irradiate white light onto the LCD screen. In this paper, a large size lenticular shaped phosphors-in-glass (PiG) was prepared by Isobam-APS gel casting for the first time. The PiG could act for converting and condensing in LCD projector. Then a rectangular light spot similar to the shape of LCD screen was obtained to reduce the loss of light. The maximum temperatures of the chip and PiG were 62.1 °C and 57.3 °C respectively after working for 600 s and gradually stabilized by simulation. It was proved that simulation result was reliable through comparing with the actual measured value and the lenticular shaped PiG had good heat dissipation capacity for its large area. In conclusion, this is a successful application of PiG in LCD projector, which has guidance and promoting effect. [ABSTRACT FROM AUTHOR]

A deliberately selected end-capping agent was introduced into the precursor to form a low number average molecular weight precursor and meet the need for liquid crystal display (LCD) 3D printing. The influence of number average molecular weight on the photocuring properties of precursor and the physical properties of pyrolysis samples were studied in detail for the first time. The results proved that a relatively low number average molecular weight precursors had low ceramic yields after pyrolysis. As the number average molecular weight of the precursor decreased, the photocuring ability of the precursor photosensitive resin increased. With the decrease in the number average molecular weight of the precursor in the precursor photosensitive resin, the ceramic yield of 3D printed PDCs decreased from 58.4% to 30.2%, and the linear shrinkage increased from 27.2% to 40.3%. The bending strength of the LCD 3D printed specimen reached 61.5 ± 3.7 MPa. The low cost of precursor synthesis and equipment in this study points the way for the preparation of precursor non-oxide ceramic composites and can be conducive to the development and application of LCD 3D printing precursor ceramics. [ABSTRACT FROM AUTHOR]

Liquid crystal display (LCD) stereolithography additive manufacturing has been introduced into the fabrication of ceramic parts, which offers an innovative, complex structure, low production cost and short cycle time. However, the use of this method is still limited due to the poor printing accuracy resulting from the light scattering effect of ceramic slurry and the collapse of heteromorphic components sintering at low temperatures. To overcome this situation, in this study, titania (TiO 2) is designed as a dual-function key additive to improve the dimensional accuracy and sintering performance of Al 2 O 3 ceramics 3D printing molds because of its unique light absorption and sintering properties. The shrinkage in three dimensions, open porosity, bulk density, flexural strength, and compressive strength are determined for the sintered ceramic. The experiment results show that the size of the printed cube gradually decreases and approaches the origin with the TiO 2 content increasing. Furthermore, the densification of ceramics sintering at 1200 °C is enhanced, which is advantageous to the preservation of the complex structure. This study also covers the process for manufacturing Al 2 O 3 ceramic parts with complex construction and good dimensional stability, which is applied in various applications. [ABSTRACT FROM AUTHOR]

[Display omitted] • We report an efficient near/supercritical methanol process for treatment of waste LCD. • Conversion ratio of the organic compounds could reach 98% at 300 °C. • TPP, PVA and LC were mainly converted or recovered at a temperature below 200 °C. • CTA was converted at a temperature above 300 °C. • High value-added chemicals were obtained from waste LCD by the NSCM process. Waste liquid crystal displays (LCD) contain a large number of organic compounds such as cellulose triacetate (CTA), poly(vinyl alcohol) (PVA), triphenyl phosphate (TPP), and liquid crystal (LC). It is important to recover organic compounds from waste LCD due to their value and environmental toxicity. However, it is challenging to recover organic compounds from waste LCD because of the heterogeneous mixture of glass, organics and metals contained therein. In this study, an environment-friendly near/supercritical methanol (NSCM) process was developed as a closed cycle technology for the conversion of organic compounds from waste LCD. The acid-base catalytic activity and nonpolar property of the NSCM could efficiently promote the conversion of organic compounds from waste LCD. TPP could be extracted below 200 °C in the NSCM process. Below 250 °C, the conversion ratio of organic compounds from waste LCD ranged from 5 % to 68 % due to the extraction or decomposition of TPP, LC, and PVA. The main products obtained at 250 °C included long-chain alcohols and alkanes with a similar composition to industrial liquid paraffin, which could be widely used in other industrial processes. Under the optimal operation parameters (300 °C, 30 min, and 1:20 g/ml), the conversion ratio of organic compounds could reach 98 % due to the efficient decomposition of CTA. The main products obtained included ketones and esters chemicals, which could be further used as a chemical feedstock. No secondary pollutant was generated in the whole process. The low-boiling methanol could easily be recycled, which could make the NSCM a clean process for the production of high value-added organic products from waste LCD. [ABSTRACT FROM AUTHOR]

In recent years, the demand for gradient porous ceramics is increasing in engineering field. By traditional process, the disadvantage of prepared gradient porous ceramics is its low porosity and uncontrollable pore gradient, which limits the wide application of gradient porous ceramics. In this study, the gradient porous ceramic skeleton (GPCS) was prepared by combining liquid crystal display (LCD) 3D printer with liquid silicon infiltration (LSI). Experimental results showed that the mass of ceramic powder in the ceramic slurry with optimal printing performance accounts for 45% of the mass of photosensitive resin, and the thermal decomposition rate of photosensitive resin is faster in the range of 300–450 °C. Furthermore, the effect of LSI temperature on the composition, microstructure and mechanical properties of GPCS was investigated. The GPCS is expected to be applied in the fields of energy storage, heat transfer and biofouling, among others. [ABSTRACT FROM AUTHOR]

[Display omitted] Due to the excellent optoelectronic properties, organic–inorganic perovskites have drawn much attention and have been applied in different electronics with remarkable performance. However, the poor stability creates a massive barrier for the commercialization of perovskite electronic devices. In this review, we discuss intrinsic and extrinsic factors causing instabilities of perovskites and perovskite devices such as solar cells, liquid crystal displays (LCDs), light emitting diodes (LEDs), ionizing radiation detectors, transistors, memristors and sensors. We further review the stabilization approaches, including composition engineering, adoption of lower dimensional compositions, quantum dots, interface engineering, defects engineering and so on. [ABSTRACT FROM AUTHOR]

[Display omitted] This study aimed to describe the use of liquid crystal display (LCD) three-dimensional (3D) printing technology to prepare moulds for vortioxetine hydrobromide (VOR) tablet placebos and provide an economical, convenient, and flexible method for the small-batch preparation of special-shaped, scored, and coated placebo tablets. First, LCD 3D printing was used to generate different placebo moulds of VOR tablets based on VOR tablet digital models subtracted from the digital models of cuboid moulds by Boolean operation to optimise the structures of moulds. The better placebo mould had a parting surface located at the 7/10 height of the packing cavities and the positioning columns and slots were three pairs, and the efflux space had slender efflux channels combined with wide efflux tanks. Next, the placebo mould was corrected by the dimensional compensation method due to the shrinkage rates of the packing cavities (2.42%) and placebo prescription (1.12%) and the thickness of the film coating (25.08 μm). The placebo prescription was 8% hydroxypropyl methylcellulose (SH K15M) hydroalcoholic gel, and its mass ratio to lactose was 0.8:2. The placebos were coated with 13% gastric-soluble film coating solution for 30 min and polished with the 30% PEG 4000 solution. The National Bureau of Standards value between the VOR tablets and their placebos was 1.22 ± 0.10 (less than1.5). Finally, the mass of the placebos was similar to that of the VOR tablets. Their dimensional differences were less than 0.1 mm. Their mass, colour, odour, shape, and texture were all similar, which were assessed by manual evaluation. In conclusion, the preparations of VOR tablet placebos can be applied in placebo-controlled trials, and LCD 3D printing has an extensive application value in preparing placebo tablets. [ABSTRACT FROM AUTHOR]

The polymer derived ceramics with complex shapes were prepared using the low-cost liquid crystal display (LCD) 3D printing technology. In this paper, we not only synthesized a liquid low-viscosity precursor with the photocurable group, but also provided a method to improve the forming precision and ceramic yield. The results showed that the introduction of KH570 could improve the curing accuracy, the ceramic yield. When the content of KH570 increased to 41 wt%, the curing shrinkage of the system decreased from 6.92% to 2.84%, the ceramic yield increased by 29.2%. Moreover, the mechanical properties of SiOC ceramics were studied and discussed. The bending strength of SiOC ceramic reached 44.2 MPa. And the ceramics after polishing were no cracks or other defects. This research demonstrates the huge potential for 3D - printed ceramics to become ubiquitous. [ABSTRACT FROM AUTHOR]

• A novel method for extracting camera calibration feature points is proposed. • A liquid crystal display(LCD) is chosen as a calibration target. • Extracting intersection points of orthogonal fringes as the feature points. • This method works well when the image is out of focus. • The Gaussian fringe is not affected by the nonlinearity of the LCD. The extraction accuracy of the mark points is directly related to the calibration accuracy of the camera. However, traditional ceramic calibration boards with checkerboard or circle dot markers are not suitable for defocused conditions and lack adaptability to changes in the measuring field. Therefore, liquid crystal displays (LCDs) that display phase-shifting patterns are widely used as phase active targets for cameral calibration. While phase-shifting patterns accurately extract feature points in defocused conditions, they are susceptible to LCD screen nonlinear errors. To address these shortcomings, we propose a practical method that involves displaying standard Gaussian stripes on LCD. Specifically, this method displays Gaussian stripes in two directions and extracts their centerline subpixel coordinates. The intersection points of the two orthogonal centerlines are then considered as the feature points. Simulation and experimental results demonstrate that the standard Gaussian stripes still accurately extract feature points when affected by LCD nonlinearity or image defocus. [ABSTRACT FROM AUTHOR]

[Display omitted] • FLCMs reduced cell density of zebrafish retinas approximately 12.6–46.1%. • FLCMs disrupted thyroid hormone levels and perturbed the hypothalamic-pituitary-thyroid axis. • TBG is the key protein that effected transport of thyroid hormones by FLCMs rather than TTR. • Disruption of the thyroid system signaling pathway ultimately affects visual motor response. • FLCMs with aliphatic ring structures represented higher T3 antagonistic potential. Liquid crystal monomers (LCMs) are the raw material for liquid crystal displays, and their use is steadily increasing in electronic products. Recently, LCMs have been reported to be novel endocrine disrupting chemicals, however, the mechanisms underlying their potential for thyroid hormone disruption and visual toxicity are not well understood. In this study, six widely used fluorinated LCMs (FLCMs) were selected to determine putative mechanisms underlying FLCM-induced toxicity to the zebrafish thyroid and visual systems. Exposure to FLCMs caused damage to retinal structures and reduced cell density of ganglion cell layer, inner nuclear layer, and photoreceptor layer approximately 12.6–46.1%. Exposure to FLCMs also disrupted thyroid hormone levels and perturbed the hypothalamic-pituitary-thyroid axis by affecting key enzymes and protein in zebrafish larvae. A thyroid hormone-dependent GH3 cell viability assay supported the hypothesis that FLCMs act as thyroid hormone disrupting chemicals. It was also determined that FLCMs containing aliphatic ring structures may have a higher potential for T3 antagonism compared to FLCMs without an aliphatic ring. Molecular docking in silico suggested that FLCMs may affect biological functions of thyroxine binding globulin, membrane receptor integrin, and thyroid receptor beta. Lastly, the visual motor response of zebrafish in red- and green-light was significantly inhibited following exposure to FLCMs. Taken together, we demonstrate that FLCMs can act as thyroid hormone disruptors to induce visual dysfunction in zebrafish via several molecular mechanisms. [ABSTRACT FROM AUTHOR]

[Display omitted] The CsPbX 3 (X = Cl, Br, or I) perovskite quantum dots (PQDs) have become attractive luminescent materials in the field of optoelectronics due to their special optical properties, such as high quantum yield and color purity. However, the stability of PQDs hindered their practical applications. Here, the stability problems and degradation mechanism of PQDs were introduced in detail. Furthermore, several methods to enhance the intrinsic and extrinsic stability of PQDs would be mentioned. Among these strategies, the glass matrix encapsulation could provide the best protection for the PQDs inside. Here, various fabrication methods of CsPbX 3 PQDs embedded with glass (PQDs@glass) were discussed. Furthermore, the difference between various kinds of glass matrix and the effect of the microstructural modulation of glass structure on the optical properties and stability of PQDs have been discussed completely. Ultimately, the potential applications of PQDs@glass in white light-emitting diodes and backlight liquid crystal displays have been discussed in detail. The comprehensive discussion in PQDs@glass may assist researchers in enhancing the stability of PQDs@glass and applying them to optoelectronic devices. [ABSTRACT FROM AUTHOR]

Mn4+-doped fluoride red phosphors are an outstanding choice for warm white light LEDs (WLEDs) and wide color gamut liquid crystal displays due to their broad absorption spectrum in the blue region, narrow emission spectrum in the red region, and high fluorescence quantum efficiency at room temperature. However, these phosphors face limited heat and water resistance challenges, which may impede the practical application of WLEDs. To overcome these issues, we synthesized K 2 SiF 6 :Mn4+ red phosphors with enhanced luminous efficiency and heat resistance using a hydrothermal method at H 2 O 2 -free condition. Furthermore, we employed citric acid (CA) to create a surface shell layer on the phosphor through room temperature surface passivation, significantly enhancing the phosphor's water resistance without compromising its luminescent properties. After immersing the two phosphors in deionized water for 360 min, the fluorescence emission intensity of KSFM (K 2 SiF 6 :0.06Mn4+) and P-KSFM (CA (0.66 wt) -K 2 SiF 6 :0.06Mn4+) decreased from 100% to 44.98% and 95.21%, respectively. Warm WLEDs encapsulated with the P-KSFM red phosphor exhibited a low correlated color temperature (CCT) of 3992 K, a high color rendering index of 87.3, and a luminous efficacy of 103.5 lm/W. These results demonstrate the significant potential of P-KSFM as a highly efficient red phosphor with excellent water resistance. • P-KSFM (CA (0.66 wt) -K 2 SiF 6 :0.06Mn4+) has been synthesized. • Sample exhibits a good water resistance induced by surface passivation. • Emission intensities are improved by surface passivation. • Negative thermal quenching effect are enhanced by surface passivation. [ABSTRACT FROM AUTHOR]

Thin-film transistor liquid crystal display (TFT-LCD) has become the mainstream display product because of its advantages of low cost, long service lifetime and high image quality. The color filter film is a key component of TFT-LCD, which determines the product's image quality. As the raw material of color filter film, the red-green-blue photoresists have decisive effects on the brightness, contrast and color saturation of TFT-LCD. The color photoresist (CPR) is a type of formulated material, including resins, photoinitiators, polymerizable monomers, pigments or dyes, solvents, additives, etc. How to design and optimize these components to meet the performance of TFT-LCD is the core of CPR material research. In this paper, the principles and compositions of CPRs are introduced, and the selection and influence of key components are described. Secondly, the academic and industrial research on the performance of CPRs was discussed. Finally, the research status of CPRs is summarized and the future is prospected. • The principles and compositions of color photoresists (CPRs) and their influences were described. • The academic and industrial research on the performance of CPRs was discussed. • The research status of CPRs was summarized and the future was prospected. [ABSTRACT FROM AUTHOR]

[Display omitted] • Two series of benzothiadiazole based Schiff bases SB/ n and BB/ n were prepared. • They are luminescent columnar LCs with p 6 mm and p 4 mm lattices. • SB/ n as an excited state intramolecular proton transfer-based AIEgens can additional form spiral luminescent gel. • SB/ n can be applied as light-emitting liquid crystal display, white light emitting diodes, sensors for Al3+ and latent fingerprints imaging. Two series of hexacatenars SB/ n and BB/ n containing a benzothiadiazole (BTD) central core with triple alkyl chains at both ends via salicylaldehyde or benzaldehyde derivated Schiff base links, respectively, were prepared. Different Schiff base links lead to different self-assembly and photophysical behaviors. Both series can self-assemble into columnar liquid crystal (LC) phases but with different lattices (p 6 mm for SB/ n , p 4 mm for BB/ n ) in bulk states, and SB/ n can additionally form gels in organic solution. Interestingly, SB/ n series were characterized with excited state intramolecular proton transfer (ESIPT) and aggregation-induced emission enhancement (AIEE) effects, and displayed high fluorescence in their solid, LC and gel states with large Stokes shifts and environmental sensitive unique spectra patterns. The effect of photoisomerization driven by ESIPT process on LC state of SB/ n was observed. The applications of SB/ n as fingerprint imaging device, Al3+ fluorescence chemosensor, white light emitting diodes (WLED) as well as light-emitting liquid crystal displays (LE-LCD) have been successfully realized. [ABSTRACT FROM AUTHOR]

Given the criticality of indium (In) in high-tech applications, spent LCD screens can represent a viable secondary In resource. In this work, an innovative and alternative technology to selectively leach In from spent LCD screens using a microbial chelating agent, desferrioxamine E (DFOE), was developed. Indium was concentrated from spent LCD screens by implementing an adapted pre-treatment procedure, allowing the isolation of an indium-rich glassy fraction. During leaching, the competition between aluminum (Al) and In for complexation with DFOE leads to the precipitation of In(OH) 3 at low DFOE concentrations (12–240 µM). After adjusting the optimal conditions (fraction size: 0–36 μM, pH: 5.5, S/L ratio: 1 g/L, 25 °C), the In leaching yield reached 32%, ten times higher than Al over 90 days with 5 mM DFOE. Thus, achieving high In recovery is possible through i) prolonging leaching durations, ii) selective leaching, and iii) minimizing Al interference. This is the first attempt to selectively leach In using a selected siderophore from end-of-life products with high concentrations of non-targeted elements (i.e. Al, Si, and Ca). This study demonstrates the potential of generating indium-rich leachates, which can be subsequently processed through the GaLIophore technology for In refining. [Display omitted] • A novel bio-based indium leaching method is proposed. • Model elucidates indium leaching mechanism. • Improved n(DFOE)/n(In) ratio lessens aluminum competition in indium leaching. • Optimal conditions yield high indium leaching. [ABSTRACT FROM AUTHOR]

Color filters (CF) are essential integral parts of the liquid crystal display (LCD) and image sensor. Compared to traditional pigment colorants, organic dyes offer a promising alternative to realize CF with improved optical properties and higher resolution. However, organic dyes usually suffer from inferior thermal and photo-stability, limiting their applications in CF. Herein, four robust donor-acceptor organic dyes based on phenanthrenequinone chromophore were designed and synthesized by introducing aromatic amine derivatives as the electron donors. The strong donor-acceptor interactions in these dyes contribute to intense broad charge-transfer absorption bands from 375 nm to 600 nm with high molar extinction coefficients, thus realizing red color. Also, these dyes exhibit high thermal and photo-stability, good compatibility with the polymer binder and low aggregation tendencies, resulting in high thermal and photo-stability for the fabricated CF films. Remarkably, among these phenanthrenequinone dyes, DTPAP with multi-donor substitution and extended π-conjugation exhibited the best performance in terms of molar extinction coefficient, thermal and photo-stability, contributing to the highest thermal and photo-stability for the CF film with color difference values (Δ E ab) below 0.75 under simulated industrial manufacturing processes. This work confirms that phenanthrenequinone is a robust chromophore and is conducive to developing thermal and photo-stable CF dyes, and paves a way to improve the optical properties and stability of donor-acceptor dyes for CF. [Display omitted] • Robust phenanthrenequinone chromophore with high bond dissociation energies. • High thermal and photo-stability via multi-donor substitution and π-conjugation extension. • Improved optical properties and stability of donor-acceptor dyes for color filters. [ABSTRACT FROM AUTHOR]

This paper reports the Cd 0.2 Zn 0.8 O channel cylindrical gate-all-around nanowire thin-film transistor (CY-GAA-NWTFT) for high-speed active-matrix liquid crystal display (AMLCD) pixel circuit with minimal kickback voltage. The AC/DC, analog, and energy efficiency of this device are investigated against the variation in lateral (channel length) as well as vertical dimension (oxide thickness) using technology computer aided design (TCAD) device simulation environment. Further, the behavior of CY-GAA-TFT is crosschecked by implementing it on resistive load digital inverter circuit followed by transient analysis to calculate delay of the inverter circuit. Moreover, static analysis has been also performed to evaluate its voltage transfer curve (VTC) to derive its noise margin and voltage gain. The execution of the proposed CY-GAA-NWT device on AMLCD pixel circuit indicates tremendous improvement in performance in terms of high-speed applications and low kickback voltage. • An elaborate comparative study of Cd 0.2 Zn 0.8 O channel cylindrical gate-all-around nanowire thin-film transistor (CY-GAA-NWTFT) device characteristics against its channel lengths and oxide thicknesses variation. • The delay of (CY-GAA-NWTFT) device with L = 140 nm and with t ox = 35 nm are in the range of picoseconds i.e., 0.404 & 0.498 ps respectively, which is much smaller than the previously reported 2D structure (Cd x Zn 1 − x O based TFT) which was in the range of microseconds i.e., 0.152 μs. Thus, the significant improvement in the device in terms of high-speed application. • The noise margin of the device with L = 140 nm and with t ox = 35 nm has the highest value when compared to the other channel lengths i.e., 160 nm and 180 nm and oxide thicknesses i.e., 45 nm and 55 nm respectively. • Tremendous improvement in mobility is observed for both channel length and oxide thickness variation with L = 140 nm (μ e f f , max = 278 cm2/V.s μ e ff , max ) & μ F E , max = 706 cm2/V.s) with t ox = 35 nm (μ e f f , max = 312 cm2/V.s μ e ff , max ) & μ F E , max = 849 cm2/V.s) when compared to the other channel lengths i.e., 160 nm and 180 nm and oxide thicknesses i.e., 45 nm and 55 nm respectively. • The CY-GAA-NWTFT device is negligible kickback voltage of approximately 0.2 mV which is much smaller than previously reported (Cd x Zn 1 − x O based TFT) which was 1.29 V. [ABSTRACT FROM AUTHOR]

Perovskite quantum dots materials have achieved significant progress in the field of optoelectronics owing to their unique advantages, such as a wide color gamut, adjustable wavelength, and low cost. These advantages make them an ideal substitute for CdSe quantum dots in backlit display devices. As a kind of nanoparticles with a localized surface plasmon resonance effect, Au can be effectively used to enhance the photoluminescence of perovskite nanocrystals (NCs). In this study, Au nanoparticles were introduced into a borosilicate glass system with CsPbBrI 2 NCs to improve the optical properties. A series of Au@CsPbBrI 2 NCs glasses with tunable wavelengths in the range of 628–640 nm was successfully prepared. The photoluminescence quantum yield (PLQY) of the CsPbBrI 2 NCs glass was increased from 15% to 68% with the addition of AuBr 3. The Au@CsPbBrI 2 NC glass showed good aqueous, thermal, and blue light stabilities. Additionally, a backlight conversion film prepared by compounding the Au@CsPbBrI 2 NC glass powder exhibiting the optimal properties with polymethylmethacrylate (PMMA), was applied to a liquid crystal display (LCD). The presented image were more saturated and richer. Our results show that the optimized sample has immense potential for practical applications in the field of backlit displays. [Display omitted] • The fluorescence intensity of CsPbBrI 2 nanocrystals is increased by nearly 5 times, and PLQY is increased from 15% to 68%. • While Au@CsPbBrI 2 @glass has excellent water stability and blue light stability, the stability of Au@CsPbBrI 2 @glass@PMMA is further improved. • Large-scale production of optical conversion films can be achieved. [ABSTRACT FROM AUTHOR]

[Display omitted] • A dual-channel multicolor fluorescence sensor was constructed by one-step method. • It can achieve the synchronous evaluation of DPA and TC. • The 51 single-chip microcontroller with voice broadcast was designed. • It improved the artificial intelligence of fluorescence sensing. Both tetracycline antibiotics (TC) and Bacillus anthracis are highly resistant to extreme environments. However, there are few studies on the intelligence detection of these two substances by establishing different detection channels. In this research, dual rare-earth coordination polymers were prepared for the detection of Bacillus anthracis and tetracycline. As a unique biomarker of B. anthracis, 2,6-pyridine dicarboxylic acid (DPA) can enhance the green fluorescence emission of Tb3+, achieving a fluorescence change from red to yellowish-green under 282 nm excitation light. Under the excitation light of 395 nm, the TC can coordinate to Eu3+ and sensitize Eu3+ to emit light through the "antenna effect," thus achieving the fluorescence change from colorless to red. To validate the protocol's applicability in environmental samples, we detected tetracycline and Bacillus anthracis in milk, honey, and tap water. In addition, quick sensing of Bacillus anthracis in soil and tetracycline on the surface of fruits was also achieved by glove-based portable sensors. Furthermore, combined with the color recognition, liquid crystal display, and intelligent voice output system in 51 microcontrollers, it can realize the intelligent and instantaneous detection of various target molecules in real life, which had a wide range of application value and prospects. [ABSTRACT FROM AUTHOR]

Liquid crystal monomers (LCMs), identified as emerging contaminations, have been detected in soils and plants, but their accumulation characteristics in plants haven't been studied. Therefore, this study systematically investigated the accumulation characteristics of LCMs in plants from four dimensions (i.e., plant fruit species, soil types, plant growth stages, and LCMs categories) for the first time. The LCMs concentrations (9.96 × 10−4 to 114.608 ng/g) in 22 plant fruits were predicted by the partition-limited model. Grains with the highest lipid content showed the highest LCMs accumulation propensity. Plants grown in paddy soil showed a strong LCMs accumulation capacity. Results showed that the LCMs accumulation capacity in plants from soils decreased when the soil organic matter content increased. A preferential accumulation of LCMs in plant root systems during growth was found by the molecular dynamics simulations. Compared to polychlorinated biphenyls (as the reference contaminants of LCMs), LCMs exhibit higher accumulation in plant roots and lower translocation to shoots. For the fourth dimension, lipophilicity was found to be the main reason of LCMs accumulation by intergraded stepwise linear regression with sensitivity analysis. This is the inaugural research concentrating on LCMs accumulation in plants, providing insights and theoretical guidance for future LCMs management strategies multidimensionally. Liquid crystal monomers (LCMs) are one of the essential materials for liquid crystal displays and have been identified as emerging containments, with detections now confirmed in soils and plants. However, the mechanism of their bioaccumulation in plants has not been established. Consequently, this paper presents the first comprehensive study on LCMs accumulation mechanisms in plants, identifying the patterns of LCMs accumulation in plants from various dimensions such as different plant species, soil types, plant growth stages, and LCMs categories, enhancing the understanding of the environmental behavior of LCMs and providing a theoretical reference for the formulation of LCMs management strategies. [Display omitted] • The first study focuses on the accumulation characteristics of LCMs in plants. • Plants with higher lipid contents may lead to higher accumulation of LCMs. • The higher the SOM content in the soil, the lower the LCMs uptake rate by plants. • LCMs exhibit a higher accumulation propensity in plant roots than that in shoots. • LCMs' lipophilicity contributes the most to the accumulation capacity in plants. [ABSTRACT FROM AUTHOR]

Tetramethylammonium hydroxide (TMAH) is widely used as a developer and etchant in the thin-film transistor liquid crystal display industry, which is the main component of developer wastewater with low C/N ratio. This study investigated TMAH degradation by combined anaerobic/integrated fixed film activated sludge (A/IFAS) process, especially for nitrogen removal. Effects of process condition on the TMAH degradation were studied, including dissolved oxygen concentration in IFAS reactor and the temperature of anaerobic reactor. Especially, the nitrogen removal was studied through the monitoring of intermediate products during TMAH biodegradation. The results indicated that lower the anaerobic treatment temperature can provide more available organic matters to enhance the denitrification in the subsequent IFAS reactor. Less oxygen supply in the IFAS reactor contributed to simultaneous nitrification and denitrification. Removal efficiency of total organic carbon and total nitrogen was up to 95.8% and 80.7%, when the temperature of anaerobic treatment was controlled at 30 °C with the DO kept at 0.7 mg/L. It indicated that A/IFAS process was efficient in carbon and nitrogen removal for TMAH degradation. The results also confirmed intermediate products of TMAH biodegradation can be used as the electron donor during denitrification, including trimethylamine, dimethylamine and methylamine. Illumina MiSeq sequencing showed that Proteobacteria was the dominant phylum contribute to nitrogen removal. Compared to sludge flocs in IFAS reactor, richer community and higher microbial diversity were observed in the biofilm. [Display omitted] • Anaerobic/IFAS process was established for TMAH degradation. • Low anaerobic temperature and DO enhanced nitrogen removal. • TMAH degradation intermediates were more accessible for denitrification. • Biofilm had richer community and higher microbial diversity than sludge floc in IFAS. [ABSTRACT FROM AUTHOR]

• We combine Stokes-Mueller calculus and θ -scan technology to investigate the optical effects of nanoparticles in liquid crystals (LCs). • The optical axis of LCs doped with nanoparticles can be determined using the proposed measurement approach. • The doping of LCs with nanoparticles can enhance their optical properties, such as birefringence. The Stokes-Mueller calculus and θ -scan technology were used to investigate optical effects in liquid crystals doped with γ -Fe 2 O 3 nanoparticles. The results showed that the dichroism decreased monotonously with increasing nanoparticle concentration, while the ellipticity decreased when the nanoparticle concentration increased from 0 to 0.06 wt%, but increased when the nanoparticle concentration increased from 0.06 wt% to 0.1 wt%. The apparent phase delay can be used to distinguish between different values of Nπ, revealing the intrinsic birefringence of the liquid crystal. The intrinsic birefringence decreases monotonically with increasing nanoparticle concentration. These results suggest that the optical properties of liquid crystals can be significantly modified by doping with nanoparticles. The findings of this study have important implications for the development of new liquid crystal display devices. [ABSTRACT FROM AUTHOR]

To evaluate the effect of post-curing with nitrogen gas on the surface conditions of 3D-printed hard occlusal splints. The evaluated mechanical properties representing the surface condition were fracture toughness, surface micro hardness, degree of monomer conversion, and three-dimensional microlayer structure. Thirty-two bar-shaped specimens (KeySplint Hard, Keystone Industries) were 3D-printed, half of them were printed by a liquid crystal display (LCD) printer with 405 nm (Creo™ C5, PLANMECA) (Creo group), while the other half were printed by a digital light processing (DLP) printer with 385 nm (Asiga MAX™, SCHEU-DENTAL) (Asiga group). Each group was divided into two subgroups according to the post-curing method: stroboscopic post-curing with 2000 flashes on each surface (Otoflash G171, BEGO) with nitrogen gas and stroboscopic post-curing without nitrogen gas. Fracture toughness (MPa m½) was measured (n=8/subgroup). Specimens were selected from each group for the evaluation of surface micro hardness (VHN) and the degree of monomer conversion (DC%). Three-dimensional microlayer structure was measured using a white light interferometry profiler (ContourGT-I, Bruker Nano, Inc.) (n=10/subgroup). Additionally, the surface condition of each specimen was visually assessed using a scanning electron microscope (SEM) (JSM-5500, JEOL Ltd.). Data were statistically analyzed with the 1-way, 2-way ANOVA followed Tukey post-hoc analysis (α= 0.05). The 1-way ANOVA revealed a statistically significant difference among the tested groups/subgroups on the investigated mechanical properties as shown in Table (P < 0.001). The 2-way ANOVA showed that the post-curing method significantly affected Vickers hardness and degree of conversion (P < 0.001), while the 3D printer type significantly affected all the investigated mechanical properties (P < 0.001). Creo specimens post-cured with nitrogen gas had the highest Vickers hardness and degree of conversion. Surface layered waviness was higher with groups printed with Asiga (13.4±0.8 and 13.7±1.0 μm for with and without nitrogen gas, respectively) compared to Creo (7.5±1.2 and 7.3±1.5 μm for with and without nitrogen gas, respectively) (P < 0.001). In Creo and Asiga groups, the specimens post-cured with nitrogen gas showed smoother surfaces in the SEM images than those without nitrogen gas. Stroboscopic post-curing with nitrogen gas can enhance the surface conditions of 3D-printed hard occlusal splint material. Additionally, the type of the 3D printer can affect the surface conditions of the investigated 3D-printed material. [Display omitted] [ABSTRACT FROM AUTHOR]

• This paper summarises part of a bigger study on LCD-DLP 3D printing high temperature ceramics. • A range of binder formulations for high loading and micron-size silica, alumina, and zircon ceramic powders in commercial particle shapes, for the use in vat-polymerisation 3D printing. • Characterisation involves: (1) Curing performance (2) Rheology of different ceramic loaded mixtures; and (3) The green body mechanical properties. • All shortlisted binders in this study provide an adequate cure depth for commercial 3D printing, even at high ceramic loadings, while maintaining their printable viscosity. • To our knowledge this is the first study on the binder design for silica, alumina and zircon based ceramic suspensions used in LCD-based Vat-polymerisation. The primary objective of this study is to demonstrate the possibility of developing silica, alumina, and zircon-based photocurable ceramic suspensions that can be used for visible light photopolymerization (> 450 nm) and to optimise the binder formulations for the purpose of LCD-based ceramic 3D printing applications. Reference ceramic components for this work are ceramic cores employed in the investment casting of high-pressure turbine blades and vanes. Arguably, one of the most critical steps in photoinduced ceramic 3D printing is developing suitable ceramic suspensions, having high ceramic loading, low viscosity, and short curing times. Ceramic suspensions with four different novel binder formulations and commercial ceramic powders used in core manufacturing (SiO 2 , Al 2 O 3 and ZrSiO 4) were investigated to achieve the best trade-off between: (1) their curing performance (cure depth and curing speed), (2) rheological properties of the binder mixtures at the solid loadings of 60 vol.% for SiO 2 , 55 vol.% for ZrSiO 4 , and 45 vol.% for Al 2 O 3 ; and (3) the green body mechanical properties of the mixtures after printing. The effect of ceramic particles on the selected binders was examined individually, and the correlation between cure depth (C d), volumetric loading, and curing speed are evaluated. The results show all binders designed in this study provide an adequate cure depth, even at high ceramic loadings. When the curing behaviour of all unloaded binder mixtures from the previous study [ 1 ] compared with the 10 vol.% SiO 2 loaded mixtures, the cure depth of all formulated binder mixtures increased 50–55 % and the curing thickness of 60 vol.% SiO 2 loaded suspensions were still slightly higher than their unloaded counterparts. The rheology outcomes indicate that lower viscosity binders always result in lower viscosity of the ceramic loaded inks, even without taking the effect of dispersants into account. Besides, the addition of N-Vinyl-2-Pyrrolidone (NVP) monofunctional monomer to the binder mixtures significantly reduces the viscosity and changes the normally linear relationship of the mix viscosity and its silica loading content. Among the binder formulations loaded with 60 vol.% of SiO 2 , the formulation providing the lowest viscosity and highest mechanical property consists of 5 wt.% of NVP, 45 wt.% of HDDA and 50 wt.% of Photocentric 34 resin. Although this binder mixture showed the highest green flexural strength when loaded by 55 vol.% ZrSiO 4 , all other mixtures loaded with zircon flour also demonstrated a near-fluid behaviour, below 200 s−1. In Al 2 O 3 loaded mixtures, the HDDA di-functional binder formulations present lowest viscosity and the di- and multifunctional monomer blends (HDDA-Photocentric27) showed the highest mechanical properties when used in a 50/50 ratio. This work summarises the best binder choices for silica, alumina and zircon based ceramic suspensions used in core printing for investment casting applications through LCD screen printing. [ABSTRACT FROM AUTHOR]

This paper proposes a fully electrically controlled metamaterial absorber based on liquid crystal (LC) in the terahertz band. The proposed structure consists of a metal resonant and grating layers, with LC injected into the formed cavity. By encoding the grating and applying different voltages, LC molecules are selectively oriented in specific regions within the structure, enabling rapid switching between various specific absorption states. Experimental results indicate that rapid responses for five states can be achieved within the frequency range from 116.5 GHz to 121.8 GHz. Compared to traditional LC absorbers, this structure allows reflection modulation through different bias voltages and enables fast modulation of specific states through grating encoding. • A fully electrically controlled metamaterial absorber based on liquid crystal is proposed. • Liquid crystals in different areas within the unit cell could be individually controlled by coding. • The absorption frequencies point could rapidly switch five distinct states within the range of 116.5 GHz to 121.8 GHz. [ABSTRACT FROM AUTHOR]

A Ti 3 C 2 T x MXene nanosheet-coated liquid crystal display (LCD) anode is meticulously crafted through precision waterjet cutting, salvaging a discarded LCD monitor. This technique, preserving structural integrity and enhanced electrical conductivity, sets it apart from conventional methods. The resulting MXene-coated LCD anode is well-suited for microbial fuel cell (MFC) applications. Comparative assessments against costlier carbonaceous electrodes like graphite felt and carbon cloth, emphasize that the water-jet cut LCD anode with Ti 3 C 2 T x MXene coating is 3.79 and 2.51 times more cost-effective, with an approximate total cost of $38/m2. Substituting Ti 3 C 2 T x MXene-coated LCD for carbon cloth and graphite felt anodes reduces MFC unit fabrication costs by 19 and 10.45 %, respectively. Notably, the Ti 3 C 2 T x MXene LCD anode-based MFC unit boasts a power density per unit cost of 0.008 W/m2/$, underscoring economic viability. This research highlights waterjet cutting's pivotal role in crafting Ti 3 C 2 T x MXene LCD anodes, opening avenues for scalable, cost-effective electrode production in renewable energy applications. [Display omitted] • A microbial fuel cell (MFC) was made with Ti 3 C 2 T x MXene-liquid crystal display (LCD) anode. • High-precision waterjet cutting technique was used to cut the LCD monitor. • The performance of the Ti 3 C 2 T x MXene- LCD anode based MFC was compared with other electrodes. • Use of MXene-coated LCD instead of carbon cloth reduced the MFC unit fabrication cost by 19 %. • MXene-LCD anode MFC displayed better power density than carbon cloth anode MFC. [ABSTRACT FROM AUTHOR]

[Display omitted] • More than 89.1% of In from LCDPs was recovered via ethanol-mediated phase transfer. • The coordination relationship between DDA and In3+ was investigated systematically. • In-based CO 2 reduction electrocatalysts were synthesized directly from LCDPs. • The In-LCDPs exhibit highly stable formate Faraday efficiency. Transforming discarded electronic devices into low-cost and high-efficiency catalysts presents a win–win approach to address the scarcity of rare resources and sustainable energy challenges. Herein, we report an effective strategy that combines an ethanol-mediated dodecylamine (DDA) phase transfer with hydrothermal methods for facilitating the facile synthesis of indium (In)-based nanomaterials from the leachates of liquid crystal display panels (LCDPs) toward high-efficiency electrochemical CO 2 reduction reaction (eCO 2 RR). In this strategy, the rapid formation of coordinating compounds between the –NH 2 group of DDA and metal ions facilitates the separation of In3+ cations from the acidic LCDPs leach solution by transferring them into an organic phase, which are then converted into InOOH nanoparticles with abundant oxygen vacancies (denoted as In-LCDPs and hereafter) through a low-temperature hydrothermal process. The eCO 2 RR evaluations confirm the superior electrocatalytic performance of the In-based nanoparticles produced from the LCDPs. In specific, within a broad potential range (−0.77 to −1.17 V vs RHE), the In-LCDPs show a Faradaic efficiency for formate (FE formate) of 85 %, with the highest FE formate of 90.23 % at −0.97 V vs RHE, which is comparable to the FE formate (93.8 % at −0.97 V vs RHE) of In-based catalyst prepared from pure In precursors using the same method. Further investigations reveal that the Sn and Al impurities have minimal impact on the catalytic performance of In-LCDPs, while the presence of Fe3+ impurities significantly enhance the production of hydrogen during the eCO 2 RR. This work might have provided a scalable pathway to transform LCDPs into value-added electrocatalysts for eCO 2 RR. [ABSTRACT FROM AUTHOR]

As the demand for slim liquid crystal displays (LCDs) continues to rise in the lighting and visual display fields, the edge-lit backlight structure has received significant attention. However, the edge-lit backlight structure cannot function properly without a light guide plate (LGP) system. This study proposes a novel LGP system employing a laser as the light source and utilizing optical fiber as a waveguide. The design transmits a laser beam into the LGP through an optical fiber, adds microstructure and reflective surfaces, and optimizes the layout of the microstructure. Under the condition that a single point light source is used as the incident light source of the system, the illumination uniformity of the light output surface is finally realized to be as high as 95.8 %, and the light transmission efficiency is as high as 79.7 %. Next, the light output performance of the LGP was measured in the case of single-point light entry on the short side of the strip LGP, and the difference between the test results and the simulation data was within 5 %. The system adopts the fiber optic transmission method of electro-optical separation, which has certain application prospects in the fields of underwater detection, decorative lighting and urban landscape. • The innovative fiber-conducted laser light guide plate system is proposed for the first time. • Achieved the conversion of single-point light source input into area light output. • Through simulation and optimization by LightTools software, the system achieves an impressive illumination uniformity. • A physical system was constructed to validate the simulated illuminance of the LGP surface. • Established spatial independence between the light source and the LGP. [ABSTRACT FROM AUTHOR]

Waste liquid crystal displays (LCDs) are one of the most substantial and rapidly growing e-waste streams that contain a notable amount of critical, precious, and toxic elements. This study presented a novel thermal-biological hybrid method for resource recovery from waste LCDs. Through the design of a multistage thermal treatment process with the addition of optimized 20 wt% B 2 O 3 to waste, the LCD's glass structure was separated into two interconnected phases, resulting in the transfer of metals from the LCD's glass phase to the B 2 O 3 phase that can solubilize in the acid solution. Following the thermal treatment step, the biometabolites of Aspergillus niger were used for bioleaching of In, Sr, Al, and As from the obtained thermally treated product. The optimal bioleaching parameters were a pulp density of 10 g/L, temperature of 70 °C, and leaching time of 2 days, which led to the highest extraction of 82.6% Al, 70.8% As, 64.5% In, and 36.2% Sr from thermally treated LCD waste, representing a multifold increase in Al, As, and Sr extraction levels compared to untreated waste. This study demonstrated that the proposed hybrid method could successfully overcome waste complexities and ensure effective element extraction from discarded LCDs. [Display omitted] • This is the first report on using a bio-hybrid method for resource recovery from LCDs. • Bioleaching results indicate a multifold increase in Al, As, and Sr extraction levels. • The optimal bioleaching conditions include a 70 °C temperature and a 48-h duration. • Oxalic acid acts as the main lixiviant for element extraction from LCDs using A. niger. • The final residue is a porous high silica content byproduct with various applications. [ABSTRACT FROM AUTHOR]

Organic-inorganic hybrid metal halides hold considerable potential for diverse applications, including light-emitting diodes, display diodes, liquid crystal displays, and photodetectors, owing to their exceptional optical properties. Herein, we successfully synthesized lead-free zero-dimensional (0D) (C 13 H 22 N) 2 MnCl 4 metal halide single crystals with green emission, employing an anti-solvent method. The (C 13 H 22 N) 2 MnCl 4 single crystals, featuring four-coordinated Mn2+, exhibit pronounced green emission at 528 nm and demonstrate a photoluminescence quantum yield (PLQY) of approximately 72 %. This emission is attributed to the 4T 1 (G)-6A 1 (S) transition and the considerable Mn–Mn spacing distance between adjacent [MnCl 4 ]2- tetrahedra. The photoluminescence spectra during thermal cycling underscore the exceptional optical stability of the (C 13 H 22 N) 2 MnCl 4 material. These organic-inorganic hybrid manganese halides emerge as a compelling and novel candidate for future light-emitting diode materials. Lead-free zero-dimensional (C 13 H 22 N) 2 MnCl 4 metal halide single crystals with green emission were successfully synthesized by an anti-solvent method. The single crystals exhibit strong green emission with PLQY of 72 % due to large Mn–Mn spacing distance. [Display omitted] • We synthesized lead-free 0D (C 13 H 22 N) 2 MnCl 4 single crystals with green emission by an anti-solvent method. • The (C 13 H 22 N) 2 MnCl 4 single crystals, featuring four-coordinated Mn2+, exhibit green emission at 528 nm and PLQY of 72 %. • The efficient emission is attributed to the considerable Mn–Mn spacing distance between adjacent [MnCl 4 ]2- tetrahedra. [ABSTRACT FROM AUTHOR]

• Synthesized eight fluorinated target compounds with a simple synthetic route. • Revealed the correlation between chemical structure and mesomorphic properties. • Terphenyl liquid crystals show high Δ n , large Δ ε and low viscoelastic constants, simultaneously. • DFT calculations of molecular conformation, dipole moment and polarizability explain the experimental results well. Laser display technology can enhance the image quality of liquid–crystal on silicon (LCoS) devices in AR displays. High birefringence (Δ n), large dielectric anisotropy (Δ ε), low rotational viscosity (γ 1) and good blue-light stability are inevitable performance requirements for achieving fast response time, low voltage and 2π phase modulation in LCoS devices based on laser display technology. However, people lack attention to how to obtain liquid crystal compounds with above properties. In this work, we propose to utilize one fluorinated terphenyl unit with excellent blue-light stability as the molecular skeleton, and then employ large polar terminal groups to modulate the molecular polarizability and dipole moment, and finally screen to obtain the LCs with high Δ n and large Δ ε. The effects of methyl, fluorinated, chlorinated and cyano terminal groups on the mesomorphic and electro-optical properties of fluorinated terphenyl LCs were systematically studied. Experimental and theoretical results show that the target compounds exhibit wide LC phase intervals, and could enhance the Δ n , Δ ε of the parent LC mixture and reduce its viscoelastic constant, further meaning that they would help to improve the electro-optical properties of LC mixtures for AR displays. Our results would provide experimental data and technical support for the future development of LC mixtures with high blue-light stability for AR displays. [ABSTRACT FROM AUTHOR]

Inorganic mini-LEDs (mLEDs) and micro-LEDs (μLEDs) have ultrahigh luminance and long lifetimes, and are challenging liquid crystal displays (LCDs) and organic light-emitting diode (OLED) displays for next-generation displays. Backplane thin-film transistors (TFTs) for mLED/μLED displays with high mobility and large driving current are under development as currently widely used backplane active materials such as crystalline silicon (CMOS Si), amorphous silicon (a-Si), low-temperature polycrystalline silicon (LTPS), and metal oxides are facing difficulties to meet the requirements. Semiconducting carbon nanotubes (s-CNTs) have long been considered as promising materials for TFTs because of their unique electronic properties. However, TFTs based on s-CNT random networks show inadequate performance due to large amounts of inter-tube junctions. Here, we report high performance TFTs based on wafer-scale, high-density aligned s-CNT array (A-CNT) for mLED/μLED driving backplanes. These A-CNT TFTs with micrometer scale channel length were fabricated using standard semiconductor manufacturing process, and exhibited mobility as high as 160 cm2/Vs and driving current as large as 417 μA/μm at operation voltage of ∼3 V, exceeding commercially available TFTs with similar device sizes. In addition, these A-CNT TFTs have demonstrated good driving capability for commercial mLEDs in a one-transistor-one-diode (1T1D) pixel circuit configuration, and been capable of driving commercially available mLED/μLED displays. Moreover, a prototype display with 2 × 2 mLED array have been demonstrated with full control of each pixel, manifesting the great potential for A-CNT TFT technology for backplane of mLED/μLED displays. High performance transistors based on aligned carbon nanotube films were fabricated, which exhibited high mobility (up to 160 cm2/Vs) and high current (up to 417 μA/μm) exceeding commercially available TFTs with similar device sizes, and have demonstrated good driving capability for commercial mini- and micro-LEDs. [Display omitted] [ABSTRACT FROM AUTHOR]

A novel approach to crystallization engineering in PVDF has been developed, resulting in a CsPbBr 3 QDs film with >70% PLQY and outstanding stability in air, water and blue light illumination. The film exhibits promising potential for wide color gamut LCDs based on Mini-LED backlight. [Display omitted] • CsPbX 3 /PVDF composite films were synthesized by in-situ crystallization method. • The film exhibit a high PLQY (70%) and outstanding stability. • PVDF strongly interacts with perovskite QDs via Lewis acid-base interaction. • Fabricated LCD based on Mini-LED backlight exhibits a wide color gamut of 128% NTSC. The polymeric composite films incorporating inorganic lead halide perovskite quantum dots (CsPbX 3 QDs, X = Cl, Br or I) are promising color conversion layers for wide gamut display devices such as Mini-LED backlight-based televisions. However, the relatively low emission efficiency and poor stability of these composite films present significant challenges for practical applications. In this study, we present a novel low-temperature in-situ crystallization strategy to prepare CsPbBr 3 /PVDF composite film through a rational designed of precursor, solvent and polymer structure. The strong interaction between PVDF and perovskite QDs via Lewis acid-base interaction allows for precise control over the crystallization and passivation of perovskite QDs. The optimized CsPbBr 3 /PVDF film exhibits bright emission with a photoluminescence quantum yield (PLQY) of up to 70 %, surpassing those of other CsPbBr 3 /polymers counterparts. Furthermore, the films demonstrate remarkable stability, retaining over 90 % of their original PLQY even after 50 days of aging under various environmental conditions such as exposure to air, immersion in water and blue light irradiation. By integrating the green and red emissive CsPbX 3 /PVDF films with blue Mini-LEDs, we successfully fabricate a prototype liquid crystal display (LCD) with an outstanding wide color gamut (128 % of NTSC 1931). These performances outperform that of commercial white-LED-based LCDs, highlighting the immense potential of CsPbX 3 /PVDF for high-definition display applications in the future. [ABSTRACT FROM AUTHOR]

Liquid crystal monomers (LCMs), one of the key materials for liquid crystal displays, have been considered as emerging pollutants in recent years. However, the environmental behaviors of LCMs have not yet been well investigated. The toxicity data of 1173 LCMs were calculated by integrated computational simulation methods in this study. It showed that 64.6% LCMs exhibited PBT (persistent, bioaccumulative, and toxic) properties. Based on the results, 1173 LCMs were identified as molecules possessing the highest level of acute toxicity to aquatic organisms. Among which, and a human health risk priority control list about LCMs was generated in this study, among which 435 were classified as requiring priority control LCMs. It was confirmed that LCMs could eventually accumulate in the human body along the aquatic food chain or penetrate the bloodstream through the dermis, thereby causing harm to health by identifying the exposure pathways of LCMs in humans. Additionally, the electronegativity of the side chain group of LCMs is the main factor causing toxicity differences; therefore, the LCMs containing halogens presented significant acute and chronic toxic effects. This study provided a more comprehensive understanding of LCMs for the public and scientific strategies for controlling LCMs. [Display omitted] • The environmental behaviors of 1173 LCMs reported in the literature were identified. • All LCMs exhibited the highest level of acute toxicity, especially for crustaceans. • LCMs can bind to various receptors, 435 LCMs pose significant risks to human health. • LCMs accumulate in human bodies through biomagnification and dermal permeation. • The electronegativity of the side chain group of LCMs leads to toxicity differences. [ABSTRACT FROM AUTHOR]

[Display omitted] • Bioleaching reactions are endergonic, non-spontaneous, and reactant-favored nature. • The degree of accessibility for elements bioleaching is as follows: As > Al > In > Sr. • The optimal bioleaching conditions include a 70 °C temperature and a 29-hour duration. • Oxalic acid acts as the main lixiviant for element extraction from LCDs using A. niger. Waste liquid crystal displays (LCDs) contain significant quantities of both valuable and hazardous metal(loid)s, presenting potential environmental risks alongside valuable opportunities for resource recovery. Biohydrometallurgy holds great promise as a technology widely applicable for dissolving metals from both ores and secondary resources. While recognized for its eco-friendliness and cost-effectiveness, bioleaching faces a challenge in terms of slow kinetics, potentially affecting process efficiency and speed. This study, for the first time, presented a comparative kinetic analysis of metal's bioleaching from end-of-life LCDs by Aspergillus niger , utilizing various rate models. Kinetic evaluation revealed different rate-determining mechanisms for each metal extraction during different time periods, indicating an overall mixed control mechanism between chemical reactivity and diffusion. The reaction rate constants and relevant calculated activation energies showed that the degree of accessibility for element's bioleaching was as follows: As > Al > In > Sr. Thermodynamic variables like activation enthalpy and entropy values determined from the Arrhenius plots at varied temperatures and the results showed that the bioleaching reactions of Al, As, In, and Sr from waste LCDs were endergonic, reactant-favored, non-spontaneous with positive Gibbs free energy values. RSM was used to optimize the interactive effects of parameters that affect the element's extraction rates. The optimal bioleaching parameters were a temperature of 70 °C, and a leaching time of 29 h, which led to the highest extraction of 81.4 % Al, 69.1 % As, 60.0 % In, and 33.3 % Sr from LCD waste under solid/liquid ratio of 10 g/L and shaking speed of 160 rpm. The findings and insights presented in this paper have the potential to advance the field and provide practical guidance for environmentally friendly and economically viable recycling of LCDs. [ABSTRACT FROM AUTHOR]

• A composite color filter is proposed to simultaneously enhance the color gamut and optical efficiency of LCD. • The first case exhibits an absolute optical efficiency improvement of 3.8% (relative improvement of 17.6%) without a reduction in the color gamut. • The second case has a larger color gamut (122.3% NTSC) and an absolute optical efficiency improvement of 1.4% (relative improvement of 6.5%). • The third case achieves the highest color gamut (126.1% NTSC) at the expense of a slight reduction (-0.8%) in absolute optical efficiency. We propose a composite color filter to achieve the wide color gamut and high optical efficiency of liquid crystal display (LCD). The composite color filter comprises a multi-layer polarization interference filter (ML-PIF) and a color filter. Specifically, two crossed polarizers and four twisted nematic liquid crystal layers with alternating opposite twisted directions form the ML-PIF. The Jones matrix method provides the transmittance formula of the ML-PIF. In the experiment, we successfully fabricate the blue and green ML-PIF s samples using the temperature birefringence effect of liquid crystal. When composite color filters (ML-PIF with certain color filters) are used in LCD, this can successfully achieve a color gamut of 122.3% NTSC and an absolute optical efficiency improvement of 1.4%. Alternatively, the composite color filter can attain a color gamut similar to that of a high-performance color filter and an absolute optical efficiency improvement of 3.8%. This composite color filter presents a tremendous opportunity for achieving a wide color gamut and high optical efficiency. [ABSTRACT FROM AUTHOR]

The CdO is a reliable metal oxide for a variety of applications in energy storage capacitors, alkaline batteries, photovoltaic cells, liquid crystal displays, smart windows, transparent electrodes, and antireflection coatings. Supercapacitor is most important emerging technology in energy storage field. The preparation of electrode materials with excellent structures and morphological features is important to enhance the specific capacitance, which participates a significant position in the energy conversion and energy storage development for sustainable human growth. The role of neodymium ion doping with two different variations has been studied. The pure CdO and different percentages of Nd3+ ion-doped CdO (1% and 3%) was prepared using one-step hydrothermal method. The cubic CdO was confirmed employing the X-ray examination. The 50-60 nm crystallite size was obtained from the XRD results. Electrochemical performance was studied in detailed with respect to various Nd3+ doping percentages. The 652 F/g specific capacitance was obtained for the 3% Nd-doped CdO electrode from charge–discharge studies. This electrode also showed 94% capacitive retention after 5000 charge–discharge cycles. This article described that Nd-ion doped CdO electrodes increases the high conductivity as a result of high specific capacitance, extended cycle life, and small charge transfer resistance and are recommended here as the best choice for 3% Nd3+ doped CdO for supercapacitor electrodes. [ABSTRACT FROM AUTHOR]

Mask stereolithography provides a new way to manufacture various high-performance engineering ceramics. However, the specialized commercial ceramic stereolithography equipment and materials are too expensive for ordinary researchers and consumers. The problem of lacking low-cost ceramic stereolithography technology needs to be solved. Due to the low intrinsic surface charge, high refractive index and high light absorption of silicon nitride ceramic, its light curable slurry with high solid content, low viscosity and low sedimentation still needs further study. In this investigation, a 40 vol% silicon nitride ceramic slurry suitable for liquid crystal display (LCD) mask stereolithography was developed. Through the experimental analysis of the slurry performance, 20 wt% of low shrinkage monomer ACMO, 30 wt% of non-reactive solvent POE and 50 wt% HDDA were optimized as the liquid phase of the silicon nitride slurry. A mixed dispersant of KD1 and CC42 was chosen to control the slurry viscosity and sedimentation. The curing thickness was increased to 38 μm under 56.8 mJ/cm2 exposure. The application of low-cost LCD based mask stereolithography in silicon nitride printing may play a role in the research and application of ceramic mask stereolithography. [ABSTRACT FROM AUTHOR]

• A process combined grinding and acid leaching was proposed to dispose waste LCDs. • This process maximally recovered valuable resources within an efficient time. • The particles with size less than 0.035 mm were agglomerated each other. • Addition of H 2 O 2 decreased leaching rate for the particle size less than 0.075 mm. • Recovery of In and Sn were obtained with 96.9% and 85.6% for 90 min of leaching. The phenomenon of the long leaching time and low leaching rate is presented in the acid leaching process under the conventional conditions of low reaction temperature and acid concentration. In order to promote leaching rates of indium and tin in waste liquid crystal display, an optimized process combining rapid milling and acid leaching has been proposed, which is more time and energy-efficient, environmentally sound compared with the traditional acid leaching process. Leaching mechanism analysis was conducted to uncover the different leaching behavior of indium and tin. And the external factors affecting the leaching rates of indium and tin were studied to optimize. In this process, the fine powder with a weight ratio of 97.6%, which particle size less than 0.075 mm, was obtained with the optimal milling time of 30 min by rapid grinding in the planetary high energy ball milling. About −0.003 l/s of grinding rate constant was performed in the grinding size fraction from 3 mm to 0.075 mm. The research results indicated that the particle size less than 0.035 mm was agglomerated, and the addition of H 2 O 2 reduced the leaching rate for the particle size less than 0.075 mm. Moreover, 86.3% and 76.1% of indium and tin were leached in a short leaching time of 10 min by using 3 M H 2 SO 4 at 85 °C for particle size range from 0.075 to 0.035 mm, while 96.9% and 85.6%, respectively in 90 min. [ABSTRACT FROM AUTHOR]

This study aims to develop a solution to the manufacturing process defects of thin-film transistor liquid crystal display (TFT-LCD) panels. Specifically, it focuses on online image analysis for detecting uneven coatings of the polyimide (PI) alignment layers, which are crucial in the TFT-LCD manufacturing process. The PI solution is typically applied to a substrate surface using an array of nozzles via droplet deposition. During this process, nozzle clogging can cause a series of defects in the form of spots on the alignment layer. These defects impact the alignment of liquid crystal molecules in the TFT-LCD, leading to decreased display quality, reduced visibility, uneven brightness, and compromised image details. If suspected signs of alignment layer spots are identified, the image analysis technology assists online inspectors with prompt responses to minimize TFT-LCD production errors. The results of this study demonstrate timely detection of alignment layer spots, prevention of their progression, and significant reduction of the time required for manual inspection to improve manufacturing yield. This newly developed approach is applicable to not only TFT-LCD production monitoring but also smart display panel manufacturing, thereby providing significant value in high-volume and large-area panel fabrication processes. • Real-time monitoring of the PI alignment film process for TFT LCD is conducted using the software program developed in this study. • Image recognition is performed by acquiring images through real-time monitoring. The recognition method involves binarizing the images and applying a special filtering and enhancement technique developed in this study to highlight defect locations. • This research method enables engineers to easily identify defect locations, thereby effectively reducing the time required for image recognition. • Based on the actual experimental results of this study, it has been shown that the error rate can be effectively reduced by 80%, thus improving the production quality of TFT LCDs. [ABSTRACT FROM AUTHOR]

Renewable energy generation is one of the key strategies to solve energy shortages and environmental problems. Among various techniques of renewable energy generation and harvesting, piezoelectric energy harvesting receives huge consideration due to the enormous demand in self-powered electronic devices. Therefore, the development of a piezoelectric nanogenerator (PENG) with effective piezoelectric energy harvesting performance is very important. Herein, we develop zinc oxide polyvinylidene fluoride based (ZnO@PVDF PENG) device and study on the effects of electrode patterns on the piezoelectric performances of the device. We also investigate real application of the device in our daily life. The findings show that interdigitated electrode patterned ZnO@PVDF PENG present the highest piezoelectric performance by harvesting output current, voltage, and power density of 1.15 μA, 50 V, and 20.10 mW/m2, respectively at 12 N. The device also scavenges energy that has capacity to light 20 green light emitting diodes (LEDs) and display a liquid crystal display (LCD) timer for 1 s. Moreover, the ZnO@PVDF PENG) device shows excellent cyclic charging and discharging property, which is very important for practical applications. Therefore, this PENG device is promising candidate to harvest green and renewable energy and use to power electronic devices. [ABSTRACT FROM AUTHOR]

[Display omitted] • Flexible films of main-chain LLCPs can be achieved by introducing renewable biobased bifuran units. • The AIE-active mesogens on LLCPs backbone undergo Z / E photoisomerization in solution and [2 + 2] cycloaddition in film. • Fluorescent patterns can be printed on the films through the cycloaddition behavior. Luminescent liquid crystalline polymers (LLCPs) have attracted great attention due to their potential applications in liquid crystal display, optical memory storage, organic light-emitting diode, and other fields. However, the fluorescence signals of LLCPs bearing conventional luminophores showing aggregation-caused quenching behavior are strikingly diminished or even vanish in the aggregated state. Herein, we have synthesized three main-chain LLCPs with α-cyanostilbene (CS) and bifuran units connected by different flexible spacer lengths via melt polycondensation. On the one hand, the CS unit acts as a rigid rod-like mesogen with aggregation-induced emission (AIE) characteristics. On the other hand, the renewable biobased bifuran moiety has been chosen because of two main reasons. One is it is a perfect alternative to the rigid fossil-based biphenyl group. The other reason is the addition of bifuran moiety is beneficial for the polycondensation and the extension of the chain length, leading to the enhancement of the toughness of LLCPs. Upon 365 nm UV light irradiation, these polymers undergo an irreversible Z/E isomerization in solution, while the [2 + 2] cycloaddition of CS chromophores occurs in the solid film. Importantly, the polymers display a good film-forming ability, so that the flexible thin films can be achieved by ordinary compression molding. Moreover, the fluorescent patterns can be directly printed on the flexible films on the basis of the [2 + 2] cycloaddition behavior, which shows their promising applications ranging from information storage to high-tech anti-counterfeiting. [ABSTRACT FROM AUTHOR]

Currently, dyes are alternative colorants to traditional pigments in color filters (CFs) of thin film transistor liquid crystal display (TFT-LCD). However, the inferior thermal stability remains an unaddressed issue despite their promising applications. Herein, a series of novel zinc phthalocyanine (ZnPc) dyes with different substituent effects were designed and synthesized. The substituent effects on its optical properties, photo-thermal stabilities and solubility were systematically investigated. Among the newly prepared ZnPc dyes, 3-B4 , which contains multiple chlorine atoms and bulky substituents decorated with two methoxy groups, showed the best performance in thermal stability and solubility tests. Furthermore, the color films fabricated by using 3-B4 also displayed the highest photo-thermal stability under simulated industrial manufacturing processes. It indicated the feasibility of 3-B4 as colorants for dye-based CFs. We hope that our design strategy for ZnPc dyes is meaningful for exploring dye-based CFs. [Display omitted] • A zinc phthalocyanine dye 3-B4 could be a colorant's candidate for dye-based color filters. [ABSTRACT FROM AUTHOR]

The electro-optical properties of some four-armed liquid crystalline materials with pentaerytrithol core based on coumarin as mesogenic moiety is investigated. The mesogenic moiety is connected to the core via spacers with various chain lengths differing. The compounds are investigated via differential scanning calorimetry (DSC) and polarizing optical microscopy (POM) equiped with a temperature controlled hot-stage. Field-Emission Scanning Electron Microscope (FESEM) and "High-Resolution Transmission Electron Microscope (HRTEM) measurements are exhibited a relatively spherical morphology with particle sizes of 145–174 nm. The electro-optical performance of the materials as thin films coated on indium-tin-oxide (ITO) glass substrates are investigated via applied voltage versus transmittance plots, exhibiting relatively low driving voltage values as low as 2.5–3 V. The ordinary (n o) and extraordinary (n e) refractive indexes of the compounds at different temperatures are measured showing a good correspondence with the POM results. In conclusion, the studied materials have exhibited proper physicochemical and electro-optical properties as materials for liquid crystal displays (LCD). [Display omitted] • Electro-optical properties of pentaerytrithol-coumarin based liquid crystals studied. • Mesogenic moieties connected to core via spacers with various chain lengths. • DSC and temperature dependent n o and n e of compounds corrlated with POM results. • Materials exhibited relatively low driving voltages as low as 2.5 and 3 V. [ABSTRACT FROM AUTHOR]

The treatment of hazardous LCD is a complicated coupled process, which contains a large number of impurity metals, especially Fe(III), increased the difficulty of In(III) recovery. Moreover, the defects of the traditional extraction process, such as extractant ageing quickly, difficulty to back-extraction, and easy emulsification, seriously restricted the efficient and environmentally friendly recovery of In. Therefore, a novel adsorbent (D2EHPA/SiO 2 –P) was synthesized for the separation and recovery of In(III), and a new recovery process was developed to eliminate the defects of traditional In recovery process in this study. D2EHPA/SiO 2 –P exhibited excellent adsorption selectivity and kinetics for In(III), and the adsorption equilibrium was obtained within 3 min. The adsorption process of In(III) conformed to the pseudo-second-order and Langmuir model. In(III) on D2EHPA/SiO 2 –P was desorbed by 3 M HCl solution, and D2EHPA/SiO 2 –P still had high adsorption and desorption efficiency for In(III) after 5 times of adsorption-desorption cycle experiments. The adsorption mechanism study found that the O–H bond on the D2EHPA participated in the substitution reaction and bonded with In(III) as the adsorption site during the adsorption process. The bond order value of In–O bond was the lowest in the D2EHPA adsorbed In(III) during the desorption process, indicating that In–O bond was easy to break and desorption form D2EHPA. Finally, in the 0.1M H 2 SO 4 system, a new process of using H 2 C 2 O 4 to reduce Fe(III) in advance, and then using D2EHPA/SiO 2 –P to adsorb In(III) was designed to recover In(III) without producing toxic gas, which realized the separation of In(III) and Fe(III). Our findings showed that the developed recovery process was both efficient and environmentally friendly, which had the potential for industrial application of In recovery from hazardous LCD. [Display omitted] • A silica-based adsorbent was successfully synthesized to separate and recover In(III). • A new process was designed to recover In(III) without producing toxic gas. • D2EHPA/SiO 2 –P showed excellent adsorption selectivity and kinetics towards In(III). • Adsorbent had good desorption and reusability proved by 5 adsorption-desorption cycles. • O–H bond in D2EHPA was involved in the binding and substitution reaction of In(III). [ABSTRACT FROM AUTHOR]