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Electronics

Organic electronics

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Displaying 26 - 50 of 141

Synergistic effect of carotenoid and silicone-based additives for photooxidatively stable organic solar cells with enhanced elasticity

July 7, 2021
Author(s)
Michela Prete, Elisa Ogliani, Mikkel Bregnhoj, Subham Dastidar, Jonas Lissau, Horst-Gunter Rubahn, Sebastian Engmann, Anne Ladegaard Skov, Michael Brook, Peter Ogilby, Adam Printz, Vida Turkovic, Morten Madsen
Photochemical and mechanical stability are critical factors in the production and application of organic solar cells. While these factors can individually be improved using different additives, there is no example of studies on the combined effects of such

Orientational ordering within semiconducting polymer fibrils

May 2, 2021
Author(s)
Subhrangsu Mukherjee, Eliot Gann, Masrur M. Nahid, Terry McAfee, Andrew Herzing, Dean DeLongchamp, Harald W. Ade
Due to a general paucity of suitable characterization methods, the internal orientational ordering of polymer fibrils has rarely been measured despite its importance particularly for semi-conducting polymers. An emerging tool with sensitivity to bond

Systematic Merging of Nonfullerene Acceptor p-Extension and Tetrafluorination Strategies Affords Polymer Solar Cells with > 16% Efficiency

April 13, 2021
Author(s)
Subhrangsu Mukherjee, Dean DeLongchamp, Guoping Li, Xiaohua Zhang, Leighton Jones, Joaquin Alzola, Liang-Wen Feng, Weigang Zhu, Charlotte Stern, Junsheng Yu, Vinod K. Sangwan, Kevin L. Kohlstedt, Michael R. Wasielewski, Mark C. Hersam, George C. Schatz, Antonio Facchetti, Tobin Marks
The end-capping group (EG) is the essential electron-withdrawing component of nonfullerene acceptors (NFAs) in bulk heterojunction (BHJ) organic solar cells (OSCs). To systematically probe the impact of two frequent EG functionalization strategies, π

A low-swelling, polymeric mixed conductor operating in aqueous electrolytes

November 30, 2020
Author(s)
Lee J. Richter, Tommaso Nicolini, Jokubas Surgailis, Achileas Savva, Guillaume Wantz, Olivier Dautel, Georges Hadiziioannou, Natalie Stingelin
Organic mixed conductors find use in batteries, bioelectronics technologies, neuromorphic computing and sensing. While great progress has been achieved, polymer-based mixed conductors frequently experience significant volumetric changes during ion uptake

High-density polyethylene - an inert additive with stabilizing effects on organic field-effect transistors

September 11, 2020
Author(s)
Alberto Scaccabarozzi, James Basham, Liyang Yu, Paul Westcott, Weimin Zhang, Aram Amassian, Iain McCulloch, Mario Caironi, David J. Gundlach, Natalie Stingelin
Organic electronics technologies have attracted considerable interest over the last decades and have become promising alternatives to conventional, inorganic platforms for specific applications. To fully exploit the touted potential of plastic electronics

Crystallography, Morphology, Electronic Structure, and Transport in Non-Fullerene/Non-Indacenodithienothiophene Polymer:Y6 Solar Cells

July 22, 2020
Author(s)
Weigang Zhu, Subhrangsu Mukherjee, Joaquin Alzola, Vinod K. Sangwan, Samuel H. Amsterdam, Steven M. Swick, Leighton Jones, Michael Heiber, Guoping Li, Kevin L. Kohlstedt, Charlotte Stern, Dean DeLongchamp, Mark C. Hersam, George C. Schatz, Michael R. Wasielewski, Antonio Facchetti, Andrew Herzing, Lin Chen, Tobin Marks
Emerging nonfullerene acceptors (NFAs) with crystalline domains enable high-performance bulk heterojunction (BHJ) solar cells. Thermal annealing is known to enhance the BHJ photoactive layer morphology and performance. However, the microscopic mechanism of

Mixed-Flow Design for Microfluidic Printing of Two-phase Polymer Semiconductor Systems

July 9, 2020
Author(s)
Subhrangsu Mukherjee, Gang Wang, Liang-Wen Feng, Wei Huang, Yao Chen, Dengke Shen, Binghao Wang, Joseph Strzalka, Zheng Ding, Ferdinand Melkonyan, Jinhui Yan, J. Fraser Stoddart, Simone Fabiano, Dean DeLongchamp, Meifang Zhu, Antonio Facchetti, Tobin Marks
The rational creation of two-phase conjugated polymer systems with high levels of phase purity in each phase is challenging but crucial for realizing printed soft matter electronics. Here we report a mixed-flow microfluidic printing (MFMP) approach for two

Contact resistance in organic field-effect transistors: conquering the barrier

May 15, 2020
Author(s)
Matthew Waldrip, Oana Jurchescu, David J. Gundlach, Emily Bittle
Organic semiconductors have sparked significant interest due to their inherent properties as flexible, solution processible, and chemically tunable electronic materials. In the last 10 years, the improvements in charge carrier mobility in small molecule

Modeling the Electromagnetic Scattering Characteristics of Carbon Nanotube Composites Characterized by 3D Tomographic Transmission Electron Microscopy

May 7, 2020
Author(s)
Ahmed M. Hassan, Md Khadimul Islam, Spencer On, Bharath Natarajan, Itai Stein, Noa Lachman, Estelle Cohen, Brian L. Wardle, Renu Sharma, James Alexander Liddle, Edward Garboczi
In nearly all prior modeling studies of the electromagnetic properties of carbon nanotube (CNT) composites, the three-dimensional (3D) shape and spatial distribution of the CNTs in the composite were unknown. Therefore, simplifying assumptions had to be

Readily Accessible Benzo[d]thiazole Polymers for Nonfullerene Solar Cells with > 16% Efficiency and Potential Pitfalls

May 4, 2020
Author(s)
Liang-Wen Feng, Jianhua Chen, Subhrangsu Mukherjee, Yao Chen, Ding Zheng, Joseph Strzalka, Gang Wang, Dean DeLongchamp, Antonio Facchetti, Tobin Marks
Here we report facile, high-yield synthetic access to the difluoro BTA building block, 4,7-bis(5-bromo-4-(2-hexyl-decyl)-thiophen-2-yl)-5,6-difluoro-2-(pentadecan-7-yl)-benzo[d]thiazole (BTAT-2f), for use in donor (D)–acceptor 1 (A1)–D–acceptor 2 (A2)
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