Results 91 to 100 of about 2,986,136 (337)

Steering Oxygen Activation Pathways via Redox Dual‐Defects in 2D Hydrated WO3 for High‐Yield Singlet Oxygen Evolution

Advanced Functional Materials, EarlyView.
Redox dual‐defects (Cs substitution and O vacancies) in 2D hydrated WO3 steer O2 activation toward selective singlet oxygen evolution. WO‐CO achieves 8.6–15.8 times higher 1O2 production than single‐defect or pristine catalysts, enabling efficient pollutant mineralization via a pathway‐selective photocatalytic mechanism.
Sheng‐Qi Guo, Mingqi Xiao, Fangyuan Zhang, Hui Li, Yuli Jia, Zhenfang Zhang, Liqun Ye, Bo Yang, Tianyi Ma   +8 more
wiley   +1 more source

Synthesis of cyanated tetracenes as the organic semiconductors

, 2009
Two novel and air-stable cyanated tetracene derivatives, 5-cyanotetracene (1CT) and 5,11-dicyanotetracene (2CT), were synthesized as high-performance organic semiconductors.
Wen, Shu-Hao, Li, An, 邓伟侨, Song, Jun-Ling, Deng, Wei-Qiao   +4 more
core   +1 more source

Small molecule tandem organic photovoltaic cells incorporating an α-NPD optical spacer layer [PDF]

, 2013
We report an improvement in power conversion efficiency in a small molecule tandem organic photovoltaic (OPV) device by the optimisation of current balancing of the sub-cells using an optical spacer layer. A co-deposited layer of N,N’-bis(1-naphthyl)-N,N′
Howells, Thomas J., Jones, T. S. (Tim S.), Jones, Tim S., New, Edward G., Sullivan, Paul J., Howells, Thomas, New, Edward, Sullivan, Paul   +7 more
core   +1 more source

An Organic Borate Salt with Superior p‐Doping Capability for Organic Semiconductors

Advanced Science, 2020
Molecular doping allows enhancement and precise control of electrical properties of organic semiconductors, and is thus of central technological relevance for organic (opto‐) electronics.
Berthold Wegner, Dominique Lungwitz, Ahmed E. Mansour, Claudia E. Tait, Naoki Tanaka, Tianshu Zhai, Steffen Duhm, Michael Forster, Jan Behrends, Yoshiaki Shoji, Andreas Opitz, Ullrich Scherf, Emil J. W. List‐Kratochvil, Takanori Fukushima, Norbert Koch   +14 more
doaj   +1 more source

Single-Junction Organic Solar Cell with over 15% Efficiency Using Fused-Ring Acceptor with Electron-Deficient Core

Joule, 2019
Summary Recently, non-fullerene n-type organic semiconductors have attracted significant attention as acceptors in organic photovoltaics (OPVs) due to their great potential to realize high-power conversion efficiencies. The rational design of the central
Jun Yuan, Yunqiang Zhang, Liuyang Zhou, Guichuan Zhang, H. Yip, Tsz-ki Lau, Xinhui Lu, Can Zhu, Hongjian Peng, P. A. Johnson, M. Leclerc, Yong Cao, J. Ulański, Yongfang Li, Y. Zou   +14 more
semanticscholar   +1 more source

Bandgap‐Engineered AlGaAs/GaAs Heterostructures for Wavelength‐Selective Dual‐Polarity Photoelectrochemistry

Advanced Functional Materials, EarlyView.
Bandgap‐engineered AlGaAs/GaAs heterostructures exhibit wavelength‐selective dual‐polarity photoelectrochemistry, switching from photocathodic to photoanodic response depending on excitation wavelength. The polarity transition is governed by band‐selective absorption, built‐in electric‐field‐driven carrier transport, and interfacial charge‐transfer ...
Yukai Mao, Lipin Chen, Jules Courtin, Siyu Lin, Gangri Cai, Yan Zhu, Yoan Léger, Nicolas Bertru, Jinshi Zhao, Charles Cornet   +9 more
wiley   +1 more source

Anisotropic Charge Transport in Bisindenoanthrazoline-Based n-Type Organic Semiconductors

, 2012
In this work, we theoretically investigated the charge-transport properties in bisindenoanthrazoline-based n-type organic semiconductors at the first-principle DFT level based on the Marcus-Hush theory.
Zhang, Xiao-Yu, 赵广久, Zhao, Guang-Jiu   +2 more
core   +1 more source

Is It Real Type‐II or S‐Scheme? A Three‐Phase Diagnostic Protocol for Identifying Potentially Mislabeled Heterojunction Photocatalysts

Advanced Functional Materials, EarlyView.
Diagnostic analysis via the heterojunction validation funnel. The funnel illustrates the hierarchical stratification of 30 reported Type‐II systems based on the three‐phase, seven‐step diagnostic framework. Complete validation through all phases is achieved by only 3.3% of systems, while 96.7% lack full mechanistic validation, revealing a pervasive ...
Ki‐Hyun Kim
wiley   +1 more source

Inversion of Magnetoresistance in Organic Semiconductors [PDF]

Physical Review Letters, 2008
We report that organic semiconductors such as alpha-sexithiophene (alpha-6T) have magnetoresistance (MR) with unexpected sign changes; depending on applied voltage, temperature, and layer thickness, the resistance may either increase or decrease upon application of a small magnetic field (
J D, Bergeson, V N, Prigodin, D M, Lincoln, A J, Epstein   +3 more
openaire   +2 more sources

Coupling Anodic Activity and Stability at Ni‐Based Non‐Oxide Catalysts via Coordinating Alcohol Oxidation and Oxygen Evolution

Advanced Functional Materials, EarlyView.
A cooperative and competitive interrelationship between alcohol oxidation (AOR) and water oxidation (OER) was observed on a typical anode catalyst of Ni2P. In situ Raman spectroscopy and electrochemical analyses revealed a specific complementary mechanism between them, in which OER and AOR critically contribute to the activity and stability of anodic ...
Yong Yan, Xinyu Liu, Yuguo Zhao, Hanwen Jian, Huan Zhou, Riyi Zhang, Dong Wang, Peter Schaaf, Lihua Wang, Guangsheng Guo, Xiayan Wang   +10 more
wiley   +1 more source