22 results on '"Engquist, Isak"'
Search Results
2. Digital Cellulose: Recent Advances in Electroactive Paper.
- Author
-
Brooke, Robert, Jain, Karishma, Isacsson, Patrik, Fall, Andreas, Engquist, Isak, Beni, Valerio, Wågberg, Lars, Granberg, Hjalmar, Hass, Ursula, and Edberg, Jesper
- Abstract
With the increasing global demand for net-zero carbon emissions, actions to address climate change have gained momentum among policymakers and the public. The urgent need for a sustainable economy is underscored by the mounting waste crisis in landfills and oceans. However, the proliferation of distributed electronic devices poses a significant challenge due to the resulting electronic waste. To combat this issue, the development of sustainable and environmentally friendly materials for these devices is imperative. Cellulose, an abundant and CO
2 -neutral substance with a long history of diverse applications, holds great potential. By integrating electrically interactive components with cellulosic materials, innovative biobased composites have been created, enabling the fabrication of bulk electroactive paper and the establishment of new, potentially more sustainable manufacturing processes for electronic devices. This review explores recent advances in bulk electroactive paper, including the fundamental interactions between its constituents, manufacturing techniques, and large-scale applications in the field of electronics. Furthermore, it addresses the importance and challenges of scaling up production of electroactive paper, highlighting the need for further research and development. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
3. High yield manufacturing of fully screen-printed organic electrochemical transistors
- Author
-
Zabihipour, Marzieh, Lassnig, Roman, Strandberg, Jan, Berggren, Magnus, Fabiano, Simone, Engquist, Isak, and Andersson Ersman, Peter
- Published
- 2020
- Full Text
- View/download PDF
4. Spray-coated paper supercapacitors
- Author
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Say, Mehmet Girayhan, Brooke, Robert, Edberg, Jesper, Grimoldi, Andrea, Belaineh, Dagmawi, Engquist, Isak, and Berggren, Magnus
- Published
- 2020
- Full Text
- View/download PDF
5. Author Correction: High yield manufacturing of fully screen-printed organic electrochemical transistors
- Author
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Zabihipour, Marzieh, Lassnig, Roman, Strandberg, Jan, Berggren, Magnus, Fabiano, Simone, Engquist, Isak, and Ersman, Peter Andersson
- Published
- 2020
- Full Text
- View/download PDF
6. Toward Photoactive Wallpapers Based on ZnO‐Cellulose Nanocomposites.
- Author
-
Alvi, Naveed Ul Hassan, Sepat, Neha, Sardar, Samim, Berggren, Magnus, Engquist, Isak, and Crispin, Xavier
- Subjects
CELLULOSE fibers ,MANUFACTURING processes ,WALLPAPER ,NANOCOMPOSITE materials ,COMPOSITE materials ,CELLULOSE - Abstract
The quest for eco‐friendly materials with anticipated positive impact for sustainability is crucial to achieve the UN sustainable development goals. Classical strategies of composite materials can be applied on novel nanomaterials and green materials. Besides the actual technology and applications also processing and manufacturing methods should be further advanced to make entire technology concepts sustainable. Here, they show an efficient way to combine two low‐cost materials, cellulose and zinc oxide (ZnO), to achieve novel functional and "green" materials via paper‐making processes. While cellulose is the most abundant and cost‐effective organic material extractable from nature. ZnO is cheap and known of its photocatalytic, antibacterial, and UV absorption properties. ZnO nanowires are grown directly onto cellulose fibers in water solutions and then dewatered in a process mimicking existing steps of large‐scale papermaking technology. The ZnO NW paper exhibits excellent photo‐conducting properties under simulated sunlight with good ON/OFF switching and long‐term stability (90 minutes). It also acts as an efficient photocatalyst for hydrogen peroxide (H2O2) generation (5.7 × 10−9 m s−1) with an envision the possibility of using it in buildings to enable large surfaces to spontaneously produce H2O2 at its outer surface. Such technology promise for fast degradation of microorganisms to suppress the spreading of diseases. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
7. All-printed diode operating at 1.6 GHz
- Author
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Sani, Negar, Robertsson, Mats, Cooper, Philip, Wang, Xin, Svensson, Magnus, Ersman, Peter Andersson, Norberg, Petronella, Nilsson, Marie, Nilsson, David, Liu, Xianjie, Hesselbom, Hjalmar, Akesso, Laurent, Fahlman, Mats, Crispin, Xavier, Engquist, Isak, Berggren, Magnus, and Gustafsson, Göran
- Published
- 2014
8. Electrical current modulation in wood electrochemical transistor.
- Author
-
Van Chinh Tran, Mastantuoni, Gabriella G., Zabihipour, Marzieh, Lengwan Li, Berglund, Lars, Berggren, Magnus, Qi Zhou, and Engquist, Isak
- Subjects
WOOD ,TRANSISTORS ,ELECTRIC conductivity ,ELECTRONIC equipment ,CONDUCTING polymers - Abstract
The nature of mass transport in plants has recently inspired the development of low-cost and sustainable wood-based electronics. Herein, we report a wood electrochemical transistor (WECT) where all three electrodes are fully made of conductive wood (CW). The CW is prepared using a two-step strategy of wood delignification followed by wood amalgamation with a mixed electron-ion conducting polymer, poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate (PEDOT:PSS). The modified wood has an electrical conductivity of up to 69 Sm-1 induced by the formation of PEDOT:PSS microstructures inside the wood 3D scaffold. CW is then used to fabricate the WECT, which is capable of modulating an electrical current in a porous and thick transistor channel (1 mm) with an on/off ratio of 50. The device shows a good response to gate voltage modulation and exhibits dynamic switching properties similar to those of an organic electrochemical transistor. This wood-based device and the proposed working principle demonstrate the possibility to incorporate active electronic functionality into the wood, suggesting different types of bio-based electronic devices. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
9. High-Gain Logic Inverters based on Multiple Screen-Printed Organic Electrochemical Transistors
- Author
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Zabihipour, Marzieh, Tu, Deyu, Forchheimer, Robert, Strandberg, Jan, Berggren, Magnus, Engquist, Isak, and Andersson Ersman, Peter
- Subjects
Other Electrical Engineering, Electronic Engineering, Information Engineering ,novel inverter designs ,organic electrochemical transistors ,PEDOT ,PSS ,printed organic electronics ,tunable voltage gain ,Mechanics of Materials ,Hardware_INTEGRATEDCIRCUITS ,General Materials Science ,Hardware_PERFORMANCEANDRELIABILITY ,Annan elektroteknik och elektronik ,Industrial and Manufacturing Engineering - Abstract
Organic electronic circuits based on organic electrochemical transistors (OECTs) are attracting great attention due to their printability, flexibility, and low voltage operation. Inverters are the building blocks of digital logic circuits (e.g., NAND gates) and analog circuits (e.g., amplifiers). However, utilizing OECTs in electronic logic circuits is challenging due to the resulting low voltage gain and low output voltage levels. Hence, inverters capable of operating at relatively low supply voltages, yet offering high voltage gain and larger output voltage windows than the respective input voltage window are desired. Herein, inverters realized from poly(3,4-ethylenedioxythiophene):polystyrene sulfonate-based OECTs are designed and explored, resulting in logic inverters exhibiting high voltage gains, enlarged output voltage windows, and tunable switching points. The inverter designs are based on multiple screen-printed OECTs and a resistor ladder, where one OECT is the driving transistor while one or two additional OECTs are used as variable resistors in the resistor ladder. The inverters performances are investigated in terms of voltage gain, output voltage levels, and switching point. Inverters, operating at +/-2.5 V supply voltage and an input voltage window of 1 V, that can achieve an output voltage window with similar to 110% increment and a voltage gain up to 42 are demonstrated. Funding Agencies|Swedish foundation for Strategic Research (Silicon-Organic Hybrid Autarkic Systems)Swedish Foundation for Strategic Research [SE13-0045]; Knut and Alice Wallenberg Foundation (Wallenberg Wood Science Center); European UnionEuropean Commission [825339, 964677]; onnesjo Foundation
- Published
- 2022
10. In Situ Lignin Sulfonation for Highly Conductive Wood/Polypyrrole Porous Composites.
- Author
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Mastantuoni, Gabriella G., Tran, Van Chinh, Engquist, Isak, Berglund, Lars A., and Zhou, Qi
- Subjects
WOOD ,CONDUCTING polymer composites ,POLYPYRROLE ,LIGNINS ,SULFONATION ,ELECTRONIC equipment ,WEIGHT gain - Abstract
To address the rising need of sustainable solutions in electronic devices, the development of electronically conductive composites based on lightweight but mechanically strong wood structures is highly desirable. Here, a facile approach for the fabrication of highly conductive wood/polypyrrole composites through top‐down modification of native lignin followed by polymerization of pyrrole in wood cell wall. By sodium sulfite treatment under neutral condition, sulfonated wood veneers with increased porosity but well‐preserved cell wall structure containing native lignin and lignosulfonates are obtained. The wood structure has a content of sulfonic groups up to 343 µmol g−1 owing to in situ sulfonated lignin which facilitates subsequent oxidative polymerization of pyrrole, achieving a weight gain of polypyrrole as high as 35 wt%. The lignosulfonates in the wood structure act as dopant and stabilizer for the synthesized polypyrrole. The composite reaches a high conductivity of 186 S m−1 and a specific pseudocapacitance of 1.71 F cm−2 at the current density of 8.0 mA cm−2. These results indicate that tailoring the wood/polymer interface in the cell wall and activating the redox activity of native lignin by sulfonation are important strategies for the fabrication of porous and lightweight wood/conductive polymer composites with potential for sustainable energy applications. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
11. A ferroelectric polymer introduces addressability in electrophoretic display cells
- Author
-
SANI, Negar, MIRBEL, Deborah, FABIANO, Simone, SIMON, Daniel, ENGQUIST, Isak, BROCHON, Cyril, CLOUTET, Eric, HADZIIOANNOU, Georges, BERGGREN, Magnus, Department of Science and Technology [Linköping], Linköping University (LIU), Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies, and Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)
- Subjects
[CHIM.POLY]Chemical Sciences/Polymers ,Medical Materials ,ferroelectric ,electrophoretic display ,passive matrix display ,[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic ,Medicinska material och protesteknik ,[SPI.MAT]Engineering Sciences [physics]/Materials - Abstract
During the last decades, tremendous efforts have been carried out to develop flexible electronics for a vast array of applications. Among all different applications investigated in this area, flexible displays have gained significant attention, being a vital part of large-area devices, portable systems and electronic labels etc electrophoretic (EP) ink displays have outstanding properties such as a superior optical switch contrast and low power consumption, besides being compatible with flexible electronics. However, the EP ink technology requires an active matrix-addressing scheme to enable exclusive addressing of individual pixels. EP ink pixels cannot be incorporated in low cost and easily manufactured passive matrix circuits due to the lack of threshold voltage and nonlinearity, necessities to provide addressability. Here, we suggest a simple method to introduce nonlinearity and threshold voltage in EP ink display cells in order to make them passively addressable. Our method exploits the nonlinearity of an organic ferroelectric capacitor that introduces passive addressability in display cells. The organic ferroelectric material poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) is here chosen because of its simple manufacturing protocol and good polarizability. We demonstrate that a nonlinear EP cell with bistable states can be produced by depositing a P(VDF-TrFE) film on the bottom electrode of the display cell. The P(VDF-TrFE) capacitor and the EP ink cell are separately characterized in order to match the surface charge at their respective interfaces and to achieve and optimize bistable operation of display pixels. Funding Agencies|Advanced Functional Materials Center at Linkoping University; Onnesjo Foundation; Knut and Alice Wallenberg FoundationKnut & Alice Wallenberg Foundation; Swedish Foundation for Strategic ResearchSwedish Foundation for Strategic Research; Aquitaine regionRegion Nouvelle-Aquitaine; Arkema; Equipex ELOR-PrintTec [ANR-10EQPX-28-01]; LabEx AMADEUS [ANR-10-LABEX0042-AMADEUS]; French state Initiative dExcellence IdEx [ANR-10-IDEX-003-02]; LCPO/Arkema INDUSTRIAL CHAIR HOMERIC [ANR-13CHIN-0002-01]
- Published
- 2019
12. Greyscale and Paper Electrochromic Polymer Displays by UV Patterning
- Author
-
Brooke, Robert, Edberg, Jesper, Crispin, Xavier, Berggren, Magnus, Engquist, Isak, and Jonsson, Magnus P.
- Subjects
patterning ,Other Electrical Engineering, Electronic Engineering, Information Engineering ,digital cellulose ,electrochromic displays ,Article ,cellulose ,lcsh:QD241-441 ,lcsh:Organic chemistry ,conductive polymers ,PEDOT ,electrochromic ,paper displays ,paper electronics ,electrochromism ,vapor phase polymerization ,Annan elektroteknik och elektronik - Abstract
Electrochromic devices have important implications as smart windows for energy efficient buildings, internet of things devices, and in low-cost advertising applications. While inorganics have so far dominated the market, organic conductive polymers possess certain advantages such as high throughput and low temperature processing, faster switching, and superior optical memory. Here, we present organic electrochromic devices that can switch between two high-resolution images, based on UV-patterning and vapor phase polymerization of poly(3,4-ethylenedioxythiophene) films. We demonstrate that this technique can provide switchable greyscale images through the spatial control of a UV-light dose. The color space was able to be further altered via optimization of the oxidant concentration. Finally, we utilized a UV-patterning technique to produce functional paper with electrochromic patterns deposited on porous paper, allowing for environmentally friendly electrochromic displays. Funding Agencies|Knut and Alice Wallenberg Foundation; Swedish Foundation for Strategic Research; Wenner-Gren Foundations; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [2009 00971]; Vinnova
- Published
- 2019
13. Ferroelectric polarization induces electronic nonlinearity in ion-doped conducting polymers
- Author
-
Fabiano, Simone, Abdollahi Sani, Negar, Kawahara, Jun, Kergoat, Loig, Nissa, Josefin, Engquist, Isak, Crispin, Xavier, and Berggren, Magnus
- Subjects
Textil-, gummi- och polymermaterial ,Textile, Rubber and Polymeric Materials - Abstract
Poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS) is an organic mixed ion-electron conducting polymer. The PEDOT phase transports holes and is redox-active, whereas the PSS phase transports ions. When PEDOT is redox-switched between its semiconducting and conducting state, the electronic and optical properties of its bulk are controlled. Therefore, it is appealing to use this transition in electrochemical devices and to integrate those into large-scale circuits, such as display or memory matrices. Addressability and memory functionality of individual devices, within these matrices, are typically achieved by nonlinear current-voltage characteristics and bistability-functions that can potentially be offered by the semiconductor-conductor transition of redox polymers. However, low conductivity of the semiconducting state and poor bistability, due to self-discharge, make fast operation and memory retention impossible. We report that a ferroelectric polymer layer, coated along the counter electrode, can control the redox state of PEDOT. The polarization switching characteristics of the ferroelectric polymer, which take place as the coercive field is overcome, introduce desired nonlinearity and bistability in devices that maintain PEDOT in its highly conducting and fast-operating regime. Memory functionality and addressability are demonstrated in ferro-electrochromic display pixels and ferro-electrochemical transistors. Funding Agencies|Advanced Functional Materials Center at Linkoping University; Onnesj Foundation; Knut and Alice Wallenberg Foundation; Swedish Foundation for Strategic Research; Swedish Governmental Agency for Innovation Systems (VINNOVA) [2015-04859]; Swedish Research Council [2016-03979]
- Published
- 2017
14. Order/disorder gradients of n-alkanethiols on gold
- Author
-
Lestelius, Magnus, Engquist, Isak, Tengvall, Pentti, Chaudhury, Manoj K, and Liedberg, Bo
- Published
- 1999
- Full Text
- View/download PDF
15. An Organic Mixed Ion–Electron Conductor for Power Electronics.
- Author
-
Malti, Abdellah, Edberg, Jesper, Granberg, Hjalmar, Khan, Zia Ullah, Andreasen, Jens W., Liu, Xianjie, Zhao, Dan, Zhang, Hao, Yao, Yulong, Brill, Joseph W., Engquist, Isak, Fahlman, Mats, Wågberg, Lars, Crispin, Xavier, and Berggren, Magnus
- Published
- 2016
- Full Text
- View/download PDF
16. Flexible Lamination-Fabricated Ultra-High Frequency Diodes Based on Self-Supporting Semiconducting Composite Film of Silicon Micro-Particles and Nano-Fibrillated Cellulose.
- Author
-
Sani, Negar, Wang, Xin, Granberg, Hjalmar, Andersson Ersman, Peter, Crispin, Xavier, Dyreklev, Peter, Engquist, Isak, Gustafsson, Göran, and Berggren, Magnus
- Published
- 2016
- Full Text
- View/download PDF
17. Conducting Polymers: An Organic Mixed Ion–Electron Conductor for Power Electronics (Adv. Sci. 2/2016).
- Author
-
Malti, Abdellah, Edberg, Jesper, Granberg, Hjalmar, Khan, Zia Ullah, Andreasen, Jens W., Liu, Xianjie, Zhao, Dan, Zhang, Hao, Yao, Yulong, Brill, Joseph W., Engquist, Isak, Fahlman, Mats, Wågberg, Lars, Crispin, Xavier, and Berggren, Magnus
- Published
- 2016
- Full Text
- View/download PDF
18. Patterning and conductivity modulation of conductive polymers by UV light exposure
- Author
-
Drew Evans, Chiara Musumeci, Jesper Edberg, Jens Wenzel Andreasen, Xianjie Liu, Robert Brooke, Donata Iandolo, Magnus Berggren, Daniel Simon, Isak Engquist, Edberg, Jesper, Iandolo, Donata, Brooke, Robert, Liu, Xianjie, Musumeci, Chiara, Andreasen, Jens Wenzel, Simon, Daniel T, Evans, Drew, Engquist, Isak, and Berggren, Magnus
- Subjects
Materials science ,Vapor phase ,02 engineering and technology ,Conductivity ,010402 general chemistry ,01 natural sciences ,Biomaterials ,chemistry.chemical_compound ,Polymer chemistry ,Polymerkemi ,Electrochemistry ,poly(3,4-ethylenedioxythiophene) ,Light exposure ,Organic electronics ,Conductive polymer ,Conductivity modulation ,patterning ,technology, industry, and agriculture ,Polymer Chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,0104 chemical sciences ,Electronic, Optical and Magnetic Materials ,organic electronics ,Chemical engineering ,chemistry ,Polymerization ,vapor phase polymerization ,sense organs ,conductivity ,0210 nano-technology ,conductive polymers ,Poly(3,4-ethylenedioxythiophene) - Abstract
A novel patterning technique of conductive polymers produced by vapor phase polymerization is demonstrated. The method involves exposing an oxidant film to UV light which changes the local chemical environment of the oxidant and subsequently the polymerization kinetics. This procedure is used to control the conductivity in the conjugated polymer poly(3,4-ethylenedioxythiophene): tosylate by more than six orders of magnitude in addition to producing high-resolution patterns and optical gradients. The mechanism behind the modulation in the polymerization kinetics by UV light irradiation as well as the properties of the resulting polymer are investigated. Funding Agencies|Knut and Alice Wallenberg Foundation [KAW 2011.0050, KAW 2014.0041, KAW 2012.0302]
- Published
- 2016
19. Electrical current modulation in wood electrochemical transistor.
- Author
-
Tran VC, Mastantuoni GG, Zabihipour M, Li L, Berglund L, Berggren M, Zhou Q, and Engquist I
- Abstract
The nature of mass transport in plants has recently inspired the development of low-cost and sustainable wood-based electronics. Herein, we report a wood electrochemical transistor (WECT) where all three electrodes are fully made of conductive wood (CW). The CW is prepared using a two-step strategy of wood delignification followed by wood amalgamation with a mixed electron-ion conducting polymer, poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate (PEDOT:PSS). The modified wood has an electrical conductivity of up to 69 Sm
-1 induced by the formation of PEDOT:PSS microstructures inside the wood 3D scaffold. CW is then used to fabricate the WECT, which is capable of modulating an electrical current in a porous and thick transistor channel (1 mm) with an on/off ratio of 50. The device shows a good response to gate voltage modulation and exhibits dynamic switching properties similar to those of an organic electrochemical transistor. This wood-based device and the proposed working principle demonstrate the possibility to incorporate active electronic functionality into the wood, suggesting different types of bio-based electronic devices.- Published
- 2023
- Full Text
- View/download PDF
20. Greyscale and Paper Electrochromic Polymer Displays by UV Patterning.
- Author
-
Brooke R, Edberg J, Crispin X, Berggren M, Engquist I, and Jonsson MP
- Abstract
Electrochromic devices have important implications as smart windows for energy efficient buildings, internet of things devices, and in low-cost advertising applications. While inorganics have so far dominated the market, organic conductive polymers possess certain advantages such as high throughput and low temperature processing, faster switching, and superior optical memory. Here, we present organic electrochromic devices that can switch between two high-resolution images, based on UV-patterning and vapor phase polymerization of poly(3,4-ethylenedioxythiophene) films. We demonstrate that this technique can provide switchable greyscale images through the spatial control of a UV-light dose. The color space was able to be further altered via optimization of the oxidant concentration. Finally, we utilized a UV-patterning technique to produce functional paper with electrochromic patterns deposited on porous paper, allowing for environmentally friendly electrochromic displays.
- Published
- 2019
- Full Text
- View/download PDF
21. Ferroelectric polarization induces electronic nonlinearity in ion-doped conducting polymers.
- Author
-
Fabiano S, Sani N, Kawahara J, Kergoat L, Nissa J, Engquist I, Crispin X, and Berggren M
- Abstract
Poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) is an organic mixed ion-electron conducting polymer. The PEDOT phase transports holes and is redox-active, whereas the PSS phase transports ions. When PEDOT is redox-switched between its semiconducting and conducting state, the electronic and optical properties of its bulk are controlled. Therefore, it is appealing to use this transition in electrochemical devices and to integrate those into large-scale circuits, such as display or memory matrices. Addressability and memory functionality of individual devices, within these matrices, are typically achieved by nonlinear current-voltage characteristics and bistability-functions that can potentially be offered by the semiconductor-conductor transition of redox polymers. However, low conductivity of the semiconducting state and poor bistability, due to self-discharge, make fast operation and memory retention impossible. We report that a ferroelectric polymer layer, coated along the counter electrode, can control the redox state of PEDOT. The polarization switching characteristics of the ferroelectric polymer, which take place as the coercive field is overcome, introduce desired nonlinearity and bistability in devices that maintain PEDOT in its highly conducting and fast-operating regime. Memory functionality and addressability are demonstrated in ferro-electrochromic display pixels and ferro-electrochemical transistors.
- Published
- 2017
- Full Text
- View/download PDF
22. An Organic Mixed Ion-Electron Conductor for Power Electronics.
- Author
-
Malti A, Edberg J, Granberg H, Khan ZU, Andreasen JW, Liu X, Zhao D, Zhang H, Yao Y, Brill JW, Engquist I, Fahlman M, Wågberg L, Crispin X, and Berggren M
- Abstract
A mixed ionic-electronic conductor based on nanofibrillated cellulose composited with poly(3,4-ethylene-dioxythio-phene):-poly(styrene-sulfonate) along with high boiling point solvents is demonstrated in bulky electrochemical devices. The high electronic and ionic conductivities of the resulting nanopaper are exploited in devices which exhibit record values for the charge storage capacitance (1F) in supercapacitors and transconductance (1S) in electrochemical transistors.
- Published
- 2015
- Full Text
- View/download PDF
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