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Introduction: Socioeconomic determinants are increasingly important factors in the integrated management of atrial fibrillation (AF). The impact of loneliness status on AF recurrence remains unclear. Methods: We conducted a cohort study based on patients with AF undergoing catheter ablation from 2017 to 2022. The Chinese version of the De Jong Gierveld scale (DJGLS) for evaluating loneliness degree was used. Multivariate Cox regression was performed to identify the independent risk factors for recurrent AF. A multivariate model was used to estimate the hazard ratio (HR) with 95% confidence interval (CI) when adjusting the known risk covariates in several kinds of subgroups. Results: Nine hundred fifty-five patients with AF and mean age > 65 years finished long-term follow-up. The AF cluster with severe/extreme loneliness tended to live alone according to DJGLS scores. Multivariate Cox regression showed that loneliness status is an independent risk factor for AF recurrence by using a multivariate model with adjustments of some covariates (moderate loneliness: HR 2.02; 95% CI 1.47–2.77, P < 0.001; severe/extreme loneliness: HR 5.28; 95% CI 3.56—7.84, P < 0.001). Survival analysis demonstrated that patients with AF with a more severe degree of loneliness are more likely to have AF recurrence in the long-term follow-up (log-rank test, P < 0.001). Restricted cubic spline (RCS) showed a mainly non-linear relationship between feeling lonely and AF recurrence (P overall < 0.001, P non-linear = 0.195). Receiver-operator characteristic curve (ROC) and time-dependent ROC curve indicated that the diagnostic value of loneliness status in predicting AF recurrence is stable and acceptable. Conclusion: A more severe degree of loneliness was positively associated with increased risk of AF recurrence. Loneliness status showed an acceptable diagnostic value in discriminating AF recurrence as an independent tripartite variable. [ABSTRACT FROM AUTHOR]

Understanding the effect of intermolecular interaction on the growth dynamic of active layers is critical for advancing organic solar cells (OSCs). However, the diverse structure of donors and acceptors makes the research challenging. Additives with customizable structures and properties could simplify this complexity. Herein, we meticulously tailor two additives of 3,4-ethylenedioxythiophene (EDOT) and 2,5-dibromo-3,4-ethylenedioxythiophene (DBEDOT), possessing distinct intermolecular interaction features to elaborate the inherent relationship. It is found that varied interaction strengths can alter film formation processes. The enhanced intermolecular interaction between the DBEDOT and non-fullerene acceptor BTP-eC9-4F results in pre-aggregation and longer crystallization duration of BTP-eC9-4F, facilitating the formation of films with compact molecular packing and decent phase separation. Thus, exciton dissociation and charge transport become more efficient. Finally, devices processed with DBEDOT exhibit a remarkable power conversion efficiency of 19.35% in small-area OSCs and 14.11% in blade-coated 5 cm × 5 cm organic solar mini-modules. Especially, OSCs can maintain 80% of their initial efficiency after continuous annealing at 85 °C for over 2,100 h. [ABSTRACT FROM AUTHOR]

Key message: OsCactinpositively regulates drought tolerance in rice. OsCactin is regulated by OsTRAB1 and interacts with OsDi19 proteins to defend against drought stress. Drought stress significantly limits plant growth and production. Cactin, a CactinC_cactus domain-containing protein encoded by a highly conserved single-copy gene prevalent across the eukaryotic kingdom, is known to play diverse roles in fundamental biological processes. However, its function in rice drought tolerance remains poorly understood. In this study, with its overexpression and knockout rice lines in both a pot drought experiment and a PEG drought-simulation test, OsCactin was found to positively regulate rice drought tolerance during the rice seedling stage. The OsCactin-overexpressing lines presented high tolerance to drought stress, whereas the OsCactin-knockout plants were sensitive to drought stress. OsCactin was localized in the nucleus, and was predominantly expressed in the leaves and panicles at the seedling and booting stages, respectively. Furthermore, OsTRAB1, a drought-responsive TF of the bZIP family, binds to the promoter of OsCactin as a drought-responsive regulator. OsDi19 proteins, the Cys2/His2 (C2H2)-type zinc finger TFs from the drought-induced 19 family, interact with OsCactin both in vitro and in vivo. Our results provide new insights into the intricate mechanisms by which OsCactin regulates the rice drought stress response, which may contribute to the design of molecular breeding methods for rice. [ABSTRACT FROM AUTHOR]

All-perovskite tandem solar cells have shown great promise in breaking the Shockley–Queisser limit of single-junction solar cells. However, the efficiency improvement of all-perovskite tandem solar cells is largely hindered by the surface defects induced non-radiative recombination loss in Sn–Pb mixed narrow bandgap perovskite films. Here, we report a surface reconstruction strategy utilizing a surface polishing agent, 1,4-butanediamine, together with a surface passivator, ethylenediammonium diiodide, to eliminate Sn-related defects and passivate organic cation and halide vacancy defects on the surface of Sn–Pb mixed perovskite films. Our strategy not only delivers high-quality Sn–Pb mixed perovskite films with a close-to-ideal stoichiometric ratio surface but also minimizes the non-radiative energy loss at the perovskite/electron transport layer interface. As a result, our Sn–Pb mixed perovskite solar cells with bandgaps of 1.32 and 1.25 eV realize power conversion efficiencies of 22.65% and 23.32%, respectively. Additionally, we further obtain a certified power conversion efficiency of 28.49% of two-junction all-perovskite tandem solar cells. The efficiency of all-perovskite tandem solar cells is impacted by the nonradiative recombination loss in Sn–Pb mixed narrow bandgap perovskite films. Here, the authors utilize a surface polishing agent with surface passivator to deliver films with a close-to-ideal stoichiometric ratio surface. [ABSTRACT FROM AUTHOR]

Perovskite solar cells with an inverted architecture provide a key pathway for commercializing this emerging photovoltaic technology because of the better power conversion efficiency and operational stability compared with the normal device structure. Specifically, power conversion efficiencies of the inverted perovskite solar cells have exceeded 25% owing to the development of improved self-assembled molecules1–5 and passivation strategies6–8. However, poor wettability and agglomeration of self-assembled molecules9–12 cause interfacial losses, impeding further improvement in the power conversion efficiency and stability. Here we report a molecular hybrid at the buried interface in inverted perovskite solar cells that co-assembled the popular self-assembled molecule [4-(3,6-dimethyl-9H-carbazol-9-yl)butyl]phosphonic acid (Me-4PACz) with the multiple aromatic carboxylic acid 4,4′,4″-nitrilotribenzoic acid (NA) to improve the heterojunction interface. The molecular hybrid of Me-4PACz with NA could substantially improve the interfacial characteristics. The resulting inverted perovskite solar cells demonstrated a record certified steady-state efficiency of 26.54%. Crucially, this strategy aligns seamlessly with large-scale manufacturing, achieving one of the highest certified power conversion efficiencies for inverted mini-modules at 22.74% (aperture area 11.1 cm2). Our device also maintained 96.1% of its initial power conversion efficiency after more than 2,400 h of 1-sun operation in ambient air.High efficiency in perovskite solar cells is achieved by using a molecular hybrid of a self-assembled monolayer with nitrilotribenzoic acid. [ABSTRACT FROM AUTHOR]

Purpose: Most forms of Mercury (Hg) in soil have significant destructive effect on ecosystems and food safety because of enormous toxicity. The existing treatment methods have drawbacks such as high energy consumption, complex operation, long remediation cycle, and secondary pollution. Therefore, this study aims to develop a governance method with low energy consumption, simple operation, short execution cycle, and no secondary pollution. Methods: A new system was set up to remove leachable Hg2+ from soil and its performance was evaluated. The system consisted of photochemical vapor generator (PVG, for Hg2+ removal), dielectric barrier discharge (DBD) trapping reactor (for collection of removed Hg0). In the presence of organic acids, leachable Hg2+ was converted to gaseous Hg0 by UV irradiation in the PVG, and transported to the DBD trap by air for collection of the removed Hg2+. Soil samples in PVG were taken into glass tubes at specific time and then added aqua regia, analyzed using ICP-MS after digested in a boiling water bath. The performance of DBD trap was analyzed by connecting with ICP-MS. Results: This study achieved the removal of leachable Hg2+ from soil under the UV excitation, the subsequent conversion of escaped gaseous Hg0 to solid and enrichment in DBD trap. The factors affecting the efficiencies of photochemical reaction, transport and collection were carefully investigated. Under the optimized conditions, the removal efficiency of 2.00 mg L−1 leachable Hg2+ in soil reached 95.0% within 1 h. Even in the presence of 15 interfering ions separately containing 50 mg L−1, good remediation effects can still be achieved. The capture rate of gaseous Hg0 by DBD trap is close to 100%. The system can achieve Hg pollution control in 10 types of soil, demonstrating great promotion value. Conclusions: This system utilizes PVG theory and DBD low-temperature plasma device to construct a safe, green, simple, and inexpensive method for removing leachable Hg2+ from soil. [ABSTRACT FROM AUTHOR]

Rivet connection is one of the most important connection technologies. The main factors affecting the rivet-forming quality of riveted structures are squeezing force, squeezing velocity, and materials of rivets and plates, which significantly impact the damage and failure of riveted holes in riveted structures. This paper provides a detailed study of the rivet-forming quality of riveted structures under different dynamic loads. A theoretical analysis method for the nonlinear dynamic plastic behavior of riveted structures is proposed to predict and investigate the rivet-forming quality of riveted structures under different squeezing forces, velocities, and materials. The proposed theoretical analysis method for the rivet-forming quality of riveted structures is conducted using the explicit dynamics method. Furthermore, the nonlinear dynamic plasticity theory method and nonlinear explicit dynamics model calculation results of riveted structures are compared with measured and Ultra Plus field scanning electron microscope scanning values. The results confirm the accuracy of the nonlinear dynamic plasticity theory method for riveted structures. In addition, the effects of different squeezing forces, velocities, rivet material, and plate material properties on the rivet-forming quality of riveted structures are also studied. This paper proposes a theoretical analysis method for the rivet-forming quality of riveted structures, providing an optimal squeezing force and velocity for rivet hole damage and rivet failure under different rivet and plate materials. [ABSTRACT FROM AUTHOR]

Metal halide perovskite solar cells are expected to lead the revolution in photovoltaics. However, due to their soft and ionic lattice, perovskites are sensitive to external stimuli, and the resulting devices suffer from noticeable fatigue under cyclic stressors in real-world applications. Due to the lack of a fundamental understanding of the metastable dynamics of materials degradation, effective means to alleviate device fatigue under cyclic illumination are lacking. Here we introduce a starch–polyiodide supermolecule as a bifunctional buffer layer at the perovskite interface, which can both suppress ion migration and promote defect self-healing. The modified perovskite solar cells exhibit improved stability by retaining 98% of their original power conversion efficiency after operation for 42 diurnal cycles (12/12 h light/dark cycle). The devices also deliver a power conversion efficiency of 24.3% (certified, 23.9%) and an intense electroluminescence with external quantum efficiencies above 12.0%. Our findings shed light on how supramolecular chemistry modulates the metastable dynamics of degradation in perovskites and other materials with soft lattices. Introduction of a starch-based layer inhibits ion migration and repairs defects generated on light/dark cycles in perovskite solar cells. Cells retain 98.0% of the initial power conversion efficiency after 42 illumination cycles, and achieve a certified power conversion efficiency of 23.9%. [ABSTRACT FROM AUTHOR]

Light availability is a primary factor influencing the growth and survival of tree seedlings in the forest understory. The effects of growth irradiance on the growth, photosynthesis and chlorophyll fluorescence parameters of an evergreen shrub, Gardenia jasminoides, were investigated with three levels of light: full light, 52.2% light and 18.2% light. The results showed that G. jasminoides grown under 18.2% light attained the lowest plant height and the highest crown diameter. The highest and lowest values of ground diameter were obtained in the 52.2% light and 18.2% light environments, respectively. Leaf area increased in plants grown under shade conditions. G. jasminoides grown under 52.2% light had the greatest leaf biomass, stem biomass and total biomass. Shade resulted in significant reductions in electron transport rate through PSII (ETR), photochemical quenching (qP) and nonphotochemical quenching (NPQ). Plants grown under shade conditions had lower heat dissipation in the antenna and higher excess energy. Chlorophyll (Chl) a, Chl b, Chl (a + b) and carotenoids (Car) increased and the Chl a/b ratio decreased in response to shade. Area-based photosynthesis (Aarea), stomatal conductance (gs) and transpiration rate (E) decreased significantly with decreasing growth irradiance, while there was no significant difference in mass-based photosynthesis (Amass) between full light and 52.2% light. G. jasminoides had the highest whole-plant photosynthesis (Aplant) value in 52.2% light and the lowest value in 18.2% light. The results suggest that approximately 52.2% light is the optimum growth irradiance for G. jasminoides. [ABSTRACT FROM AUTHOR]

Carbon films with two different kinds of sp2 nanocrystallited structure were investigated to study the stick-slip friction with the in-situ and ex-situ tests. In-situ transmission electron microscope (TEM) observation and nanofriction tests revealed that the origins of stick and slip varied with shear stress and film deformation. At the stick stage, shear stress gradually increased with the contact strengthened until reached the shear strength to break the interfacial adhesion; at the slip stage, the shear stress decreased and accompanied with film deformation. During the sliding process, adhesive deformation resulted in the large stick-slip step while ploughing deformation led to a smoother step. Ex-situ nanofriction tests on a series of sp2 nanocrystallited carbon films with different irradiation energies showed the expected sliding behavior with the in-situ results. This study first clarified the mechanism of stick-slip friction with the in-situ TEM observation, which plays the important role for the micro and nano application of sp2 nanocrystallited carbon films. [ABSTRACT FROM AUTHOR]

In this paper, the bearing capacity of the compressed stiffened composite panel with I and T stringer section is detailly-investigated. The finite element simulation is employed to simulate an instability path of the structures with different factors for a series of 54 models. Moreover, the accuracy of the simulation model is verified by the strain assurance criterion (SAC). An engineering approach is proposed to establish constitutive equations and predict the buckling load. The values calculated by analytical solution and finite element simulation are compared with the experimental ones. The results confirm the accuracy of analytical methods. Furthermore, the effect of various cross-section geometries of stringers on the bearing capacity of the composite stiffened panel is investigated. A reasonable distance between stringers is six times the effective skin width. The recommended area ratio δ between the stringer and skin is recommended 3.5:6.5 or 5:5. This study presents a method for designing an optimal stringer and promotes the composite stiffened panel structure's application in civil aviation aircraft. [ABSTRACT FROM AUTHOR]

Place recognition and loop detection play an important role in the outdoor simultaneous localization and mapping (SLAM). In this paper, we present a place recognition and navigation method based on the random forest algorithm for outdoor mobile robot with three-dimensional (3D) laser point cloud data. The 3D point cloud-based place recognition employs a global feature extractor composed of well-designed geometric and statistical features without preprocessing for the effective training and construction of the random forest classifier. Then, the environment point cloud and node map are fed into the classifier for the place recognition task. The place recognition method is subsequently applied to the loop detection of the mobile robots. To begin with, the odometry pose nodes are sorted according to their location and distance, and are then fed into the random forest classifier for loop discrimination. Eventually, loop verification based on the overlap rate of two point clouds is performed to identify the true loop. The loop detection method is combined with S4-SLAM proposed earlier by us to form the new S4-SLAM2 algorithm. Node maps constructed via S4-SLAM2 perform global re-localization in the given map by combining the place recognition method and the point cloud registration. The proposed method was verified by extensive evaluations using the KITTI dataset, as well as real-world scenarios of outdoor environments. The loop detection recall was determined as 82%, with 100% precision. The S4-SLAM2 system also exhibited high localization and mapping accuracies, with a localization output rate of 10 Hz and an average localization drift lower than 1%. [ABSTRACT FROM AUTHOR]

Poor stability of spiro-OMeTAD hole transport materials (HTM) with dopant is a major obstacle for the commercialization of perovskite solar cell (pero-SC). Herein, we demonstrate a series of quinoxaline-based D-A copolymers PBQ5, PBQ6 and PBQ10 as the dopant-free polymer HTMs for high performance pero-SCs. The D-A copolymers are composed of fluorothienyl benzodithiophene (BDTT) as D-unit, difluoroquinoxaline (DFQ) with different side chains as A-unit, and thiophene as π-bridge, where the side chains on the DFQ unit are bi-alkyl for PBQ5, bi-alkyl-fluorothienyl for PBQ6, and alkoxyl for PBQ10. All the three copolymers are adopted as the dopant-free HTM in the pero-SCs. The planar n-i-p structured pero-SCs based on (FAP-bI3)0.98(MAPbBr3)0.02 with PBQ6 HTM demonstrated the high power conversion efficiency (PCE) of 22.6% with Voc of 1.13 V and FF of 80.8%, which is benefitted from the suitable energy level and high hole mobility of PBQ6. The PCE of 22.6% is the highest efficiency reported in the n-i-p structured pero-SCs based on dopant-free D-A copolymer HTM. In addition, the pero-SCs show significantly enhanced ambient, thermal and light-soaking stability compared with the devices with traditional spiro-OMeTAD HTM. [ABSTRACT FROM AUTHOR]

D-A copolymerization is a broadly utilized molecular design strategy to construct high efficiency photovoltaic materials for polymer solar cells (PSCs), and all the D-A copolymer donors reported till now are the alternate D-A copolymers with equal D- and A-units. Here, we first propose a non-equivalent D-A copolymerization strategy with unequal D- and A-units, and develop three novel non-equivalent D-A copolymer donors (PM6-D1, PM6-D2 and PM6-D3 with D/A unit ratio of 1.1:0.9, 1.2:0.8 and 1.3:0.7, respectively) by inserting more D units into the alternate D-A copolymer PM6 backbone to finely tune the physicochemical and photovoltaic properties of the polymers. The three non-equivalent D-A copolymers show the down-shifted highest occupied molecular orbital (HOMO) energy levels, higher hole mobility, higher degree of molecular self-assembly and higher molecular crystallinity with the increase of D-unit ratio in comparison with the alternate D-A copolymer PM6. As a result, all the three non-equivalent D-A copolymer-based PSCs with Y6 as acceptor achieve improved power conversion efficiency (PCE) with higher Voc, larger Jsc and higher FF simultaneously. Particularly, the PM6-D1:Y6 based PSC achieved a high PCE of 17.71%, which is significantly higher than that (15.82%) of the PM6:Y6 based PSC and is one of the highest performances in the binary PSCs. [ABSTRACT FROM AUTHOR]

Quantum secret sharing (QSS) schemes without entanglement have huge advantages in scalability and are easier to realize as they only require sequential communications of a single quantum system. However, these schemes often come with drawbacks such as exact (n, n) structure, security flaws and absences of effective cheating detections. To address these problems, we propose a verifiable framework by utilizing entanglement-free states to construct (t, n)-QSS schemes. Our work is the heuristic step toward information-theoretical security in entanglement-free QSS, and it sheds light on how to establish effective verification mechanism against cheating. As a result, the proposed framework has a significant importance in constructing QSS schemes for versatile applications in quantum networks due to its intrinsic scalability, flexibility and information-theoretical security. [ABSTRACT FROM AUTHOR]

Rice blast disease caused by Magnaporthe oryzae is an important limiting factor to rice production in the world. Introgression of blast resistance genes into improved germplasm by marker-assisted selection has been considered as an effective and environmentally beneficial means to control this disease. Pike, a broad-spectrum blast resistance gene, was cloned by map-based strategy recently in our laboratory. Two adjacent CC-NBS-LRR genes (designated as Pike- 1 and Pike- 2) were required for Pike-mediated resistance. In the current study, sequence alignment of the SNP G1328C and the SNP-surrounding region let us find that the Pik DNA variants of the studied rice lines appear to be divided into G-, C-, T- and G'-types. Based on the four genotypes, a Pike-specific marker system consisting of three PCR-based markers CP-G1328C, CP-G1328T and CP-G1328G' was developed and used to effectively differentiate G-type allele from each of the others. Using this marker system, we investigated distribution of the Pik DNA variants in a set of 326 rice varieties or breeding lines and found that there were 2, 130, 135 and 59 rice lines identified to carry G-, C-, T- and G'-type alleles, respectively. In addition, with sequence data of the SNP G1328C-containing genomic region derived from 56 rice lines, we constructed a phylogenetic tree with three major clades which just corresponded to the types of the Pik DNA variants described above. [ABSTRACT FROM AUTHOR]

Key message: The OsDi19 proteins functioned as transcription factors and played crucial roles in response to abiotic stress. Overexpression of OsDi19 - 4 in rice increased drought tolerance by enhancing ROS-scavenging activity. Abstract: Many transcription factors play crucial roles in plant responses to abiotic stress. Here, comprehensive sequence analysis suggested that the drought-induced 19 ( Di19) gene family in rice genome contain seven members, and these proteins contained a well-conserved zinc-finger Di19 domain. Most OsDi19 proteins were mainly targeted to the nucleus and have transactivation activity in yeast. Yeast two-hybrid and bimolecular fluorescence complementation assays showed that most OsDi19 proteins could form protein dimers. Expression analysis demonstrated that the OsDi19 genes were differentially and abundantly expressed in vegetative tissues, but expressed little in reproductive tissues and some of the OsDi19 genes were markedly induced by abiotic stresses and hormones in qRT-PCR analysis and microarray data. Overexpression of one stress-responsive gene, OsDi19- 4, in rice resulted in significantly increased tolerance to drought stress compared with the wild type plants. Moreover, obviously increased ROS-scavenging ability was detected in the OsDi19- 4-overexpressing plants under normal and drought stress conditions. These results suggested that the increased stress tolerance of OsDi19- 4-overexpressing plants may be attributable to the enhanced ROS-scavenging activity. Taken together, these studies provide a detailed overview of the rice Di19 gene family, and suggest that the OsDi19 family may play crucial roles in the plant response to abiotic stress. [ABSTRACT FROM AUTHOR]

With comparable transparency, flexibility, but a better conductivity, metal-mesh based PEN film provides an alternative low-cost electrode material to the conventional ITO/PEN film for flexible solar cell system. In this article, counter electrodes (CEs) prepared by coating metal-mesh/PEN with a mixture of PEDOT:PSS and carbon black nanoparticle (200-400 nm) were utilized in flexible dye-sensitized solar cells (DSCs). A high efficiency of 5.5 % was achieved with the DSC based on the metal-mesh/PEN CE, rivaling that of the DSC based on ITO/PEN CE. [ABSTRACT FROM AUTHOR]

In indica rice, the HongLian (HL)-type combination of cytoplasmic male sterility (CMS) and fertility restoration ( Rf) is widely used for the production of commercial hybrid seeds in China, Laos, Vietnam and other Southeast Asian countries. Generally, any member of the gametophytic fertility restoration system, 50% of the pollen in hybrid F plants displays recovered sterility. In this study, however, a HL-type hybrid variety named HongLian You6 had approximately 75% normal (viable) pollen rather than the expected 50%. To resolve this discrepancy, several fertility segregation populations, including F and BCF derived from the HL-CMS line Yuetai A crossed with the restorer line 9311, were constructed and subjected to genetic analysis. A gametophytic restoration model was discovered to involve two non-allelic nuclear restorer genes, Rf5 and Rf6. The Rf5 had been previously identified using a positional clone strategy. The Rf6 gene represents a new restorer gene locus, which was mapped to the short arm of chromosome 8. The hybrid F plants containing one restorer gene, either Rf5 or Rf6, displayed 50% normal pollen grains with I-KI solution; however, those with both Rf5 and Rf6 displayed 75% normal pollens. We also established that the hybrid F plants including both non-allelic restorer genes exhibited an increased stable seed setting when subjected to stress versus the F plants with only one restorer gene. Finally, we discuss the breeding scheme for the plant gametophytic CMS/ Rf system. [ABSTRACT FROM AUTHOR]

If an adversary tries to obtain a secret s in a (t, n) threshold secret sharing (SS) scheme, it has to capture no less than t shares instead of the secret s directly. However, if a shareholder keeps a fixed share for a long time, an adversary may have chances to filch some shareholders' shares. In a proactive secret sharing (PSS) scheme, shareholders are supposed to refresh shares at fixed period without changing the secret. In this way, an adversary can recover the secret if and only if it captures at least t shares during a period rather than any time, and thus PSS provides enhanced protection to long-lived secrets. The existing PSS schemes are almost based on linear SS but no Chinese Remainder Theorem (CRT)-based PSS scheme was proposed. This paper proposes a PSS scheme based on CRT for integer ring to analyze the reason why traditional CRT-based SS is not suitable to design PSS schemes. Then, an ideal PSS scheme based on CRT for polynomial ring is also proposed. The scheme utilizes isomorphism of CRT to implement efficient share refreshing. [ABSTRACT FROM AUTHOR]

The original PDF version of this Article contained an error in the Additional information section, which incorrectly included the statement 'This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2019'. This has been removed from the PDF version of the Article. The HTML version was correct from the time of publication. [ABSTRACT FROM AUTHOR]

Despite significant development recently, improving the power conversion efficiency of organic photovoltaics (OPVs) is still an ongoing challenge to overcome. One of the prerequisites to achieving this goal is to enable efficient charge separation and small voltage losses at the same time. In this work, a facile synthetic strategy is reported, where optoelectronic properties are delicately tuned by the introduction of electron-deficient-core-based fused structure into non-fullerene acceptors. Both devices exhibited a low voltage loss of 0.57 V and high short-circuit current density of 22.0 mA cm−2, resulting in high power conversion efficiencies of over 13.4%. These unconventional electron-deficient-core-based non-fullerene acceptors with near-infrared absorption lead to low non-radiative recombination losses in the resulting organic photovoltaics, contributing to a certified high power conversion efficiency of 12.6%. Improving the power conversion efficiency is the main target of the organic solar cell research. Here Yuan et al. develop unconventional electron-deficient-core-based non-fullerene acceptors to achieve both low voltage loss and high current density, leading to a certified high efficiency of 12.6%. [ABSTRACT FROM AUTHOR]