Results 111 to 120 of about 120,940 (302)

Polymeric Squaraine Dyes as Electron Donors in Bulk Heterojunction Solar Cells

, 2010
A polysquaraine low band gap polymer was synthesized by Yamamoto coupling of a monomeric dibromo indolenine squaraine dye. The resulting polymer has a weight average molar mass in the order of Mw ~30.000-50.000 and a polydispersity of ca.
Ajayaghosh, Alex, Arunkumar, Brabec, Chen, Chen, Chen, Dimitriev, Emmelius, Fu, Gassensmith, Grahn, Grätzel, Halls, Havinga, Havinga, Hiramoto, Jiménez, Kamat, Kamat, Law, Lewis, Li, Li, Liu, Ma, Ma, Mayerhöffer, McRae, Merritt, Morel, Oku, Otsuka, Park, Reddington, Ricks, Ros-Lis, Ros-Lis, Sameiro, Scharber, Scherer, Sens, Shrotriya, Silvestri, Smith, Stokes, Takeda, van Duren, Wang, Xiang, Yu, Yu, Yum, Zhang, Zhao   +54 more
core   +1 more source

Trap‐Assisted Transport and Neuromorphic Plasticity in Lead‐Free 2D Perovskites PEA2SnI4

Advanced Functional Materials, EarlyView.
An artificial retina built from lead‐free layered perovskite (PEA)2SnI4 converts light input into a persistent photocurrent and sums successive flashes over time. Micro/nanocrystals integrated on electrodes act as synapse‐like pixels that perform temporal integration directly in hardware. This in‐sensor preprocessing merges detection and computation on
Ofelia Durante, Valeria Demontis, Jonas Riisnaes Karl, Lam Hoi Tung, Sebastiano De Stefano, Daniela Marongiu, Adolfo Mazzotti, Aditya Bhardwaj, Francesco Mattana, Elisa Pili, Selene Matta, Federico Paolucci, Michele Saba, Andrea Mura, Giovanni Bongiovanni, Monica F Craciun, Saverio Russo, Antonio Di Bartolomeo   +17 more
wiley   +1 more source

Conductive Bonding and System Architectures for High‐Performance Flexible Electronics

Advanced Functional Materials, EarlyView.
This review outlines bonding technologies and structural design strategies that support high‐performance flexible and stretchable electronics. Bonding approaches such as surface‐activated bonding and anisotropic conductive films, together with system‐level architectures including buffer layers and island‐bridge structures, possess distinct mechanical ...
Kazuma Nakajima, Kenjiro Fukuda
wiley   +1 more source

Electric Field‐Dependent Conductivity as Probe for Charge Carrier Delocalization and Morphology in Organic Semiconductors

Advanced Functional Materials, EarlyView.
Applying a high electric field to a doped organic semiconductor heats up the charge carrier distribution beyond the lattice temperature, enhancing conductivity. It is shown that the associated effective temperature can be used to extract the effective localization length, which is a characteristic length scale of charge transport and provides ...
Morteza Shokrani, Felix Maximilian Graf, Anton Kompatscher, Dennis Derewjanko, Martijn Kemerink   +4 more
wiley   +1 more source

Enhanced power conversion efficiency in iridium complex-based terpolymers for polymer solar cells

npj Flexible Electronics, 2018
Polymer solar cells: low concentrations of Iridium complexes boost efficiency Only 1 mol% of Ir complex can do the trick to greatly enhance the efficiency of PTB7-Th: fullerene polymer solar cell from 7.9 to 9.2%.
Zhongyuan Xue, Shifan Wang, Jie Yang, Yu Zhong, Min Qian, Cheng Li, Zhiguo Zhang, Guichuan Xing, Sven Huettner, Youtian Tao, Yongfang Li, Wei Huang   +11 more
doaj   +1 more source

Comparison Study of Wide Bandgap Polymer (PBDB-T) and Narrow Bandgap Polymer (PBDTTT-EFT) as Donor for Perylene Diimide Based Polymer Solar Cells

Frontiers in Chemistry, 2018
Perylene diimide (PDI) derivatives as a kind of promising non-fullerene-based acceptor (NFA) have got rapid development. However, most of the relevant developmental work has focused on synthesizing novel PDI-based structures, and few paid attentions to ...
Tengling Ye, Shan Jin, Cong Kang, Changhao Tian, Xin Zhang, Chuanlang Zhan, Shirong Lu, Zhipeng Kan   +7 more
doaj   +1 more source

Advances and challenges in commercializing radiative cooling [PDF]

, 2019
Radiative cooling (RC) dissipates terrestrial heat to outer space through the atmospheric window, without external energy input and production of environmental pollutants. More and more efforts have been devoted to this clean promising cooling technology;
Feng, W, Liu, J, Zhang, J, Zhou, Z, Zuo, J   +4 more
core  

Plasmonic ITO-free polymer solar cell

Optics Express, 2014
The aluminum and sliver multilayered nano-grating structure is fabricated by laser interference lithography and the intervals between nanoslits is filled with modified PEDOT:PSS. The grating structured transparent electrode functions as the anti-reflection layer which not only decreases the reflected light but also increases the absorption of the ...
Ming-Yi, Lin, Yu Ling, Kang, Yu-Cheng, Chen, Tsung-Han, Tsai, Shih-Chieh, Lin, Yi-Hsiang, Huang, Yi-Jiun, Chen, Chun-Yang, Lu, Hoang Yan, Lin, Lon A, Wang, Chung-Chih, Wu, Si-Chen, Lee   +11 more
openaire   +2 more sources

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Oxygen doping of P3HT:PCBM blends: Influence on trap states, charge carrier mobility and solar cell performance

, 2010
We investigated the influence of oxygen on the performance of P3HT:PCBM (poly(3-hexylthiophene):[6,6]-phenyl C61 butyric acid methyl ester) solar cells by current--voltage, thermally stimulated current (TSC) and charge extraction by linearly increasing ...
Baumann, Andreas, Deibel, Carsten, Dyakonov, Vladimir, Schafferhans, Julia, Wagenpfahl, Alexander   +4 more
core   +1 more source