Results 321 to 330 of about 2,057,645 (389)

Linkage-engineered donor–acceptor covalent organic frameworks for optimal photosynthesis of hydrogen peroxide from water and air

Nature Catalysis
Yongzhi Chen, Hongde Yu, Miroslav Položij   +2 more
exaly   +2 more sources

Achieving 19% Power Conversion Efficiency in Planar‐Mixed Heterojunction Organic Solar Cells Using a Pseudosymmetric Electron Acceptor

Advances in Materials, 2022
A record power conversion efficiency (PCE) of over 19% is realized in planar‐mixed heterojunction (PMHJ) organic solar cells (OSCs) by adopting the asymmetric selenium substitution strategy in making a pseudosymmetric electron acceptor, BS3TSe‐4F.
Wei Gao, Fengxiao Qi, Zhengxing Peng, Francis R. Lin, Kui Jiang, Cheng Zhong, W. Kaminsky, Zhiqiang Guan, C. Lee, T. Marks, H. Ade, A. Jen   +11 more
semanticscholar   +1 more source

Acceptor–acceptor-type conjugated polymer semiconductors

Journal of Energy Chemistry, 2021
Abstract The rapid development of electronic devices such as organic field-effect transistors (OFETs) and solar cells makes the research and development of electronic transport materials imminent. The acceptor–acceptor-type (A−A-type) conjugated n-type polymer semiconductors have caught much attention due to the outstanding advantages on excellent ...
Dunshuai Qu, Ting Qi, Hui Huang
openaire   +1 more source

Organic Solar Cells with 18% Efficiency Enabled by an Alloy Acceptor: A Two‐in‐One Strategy

Advances in Materials, 2021
The trade‐off between the open‐circuit voltage (Voc) and short‐circuit current density (Jsc) has become the core of current organic photovoltaic research, and realizing the minimum energy offsets that can guarantee effective charge generation is strongly
Feng Liu, Liang Zhou, Wenrui Liu, Zichun Zhou, Qihui Yue, Wenyu Zheng, Ri Sun, Wuyue Liu, Shengjie Xu, Haijun Fan, Liheng Feng, Yuanping Yi, Wenkai Zhang, Xiaozhang Zhu   +13 more
semanticscholar   +1 more source

Oxygen as Acceptor

EcoSal Plus, 2009
Like most bacteria, Escherichia coli has a flexible and branched respiratory chain that enables the prokaryote to live under a variety of environmental conditions, from highly aerobic to completely anaerobic. In general, the bacterial respiratory chain is composed of dehydrogenases, a quinone pool, and reductases ...
Vitaliy B, Borisov, Michael I, Verkhovsky   +1 more
openaire   +3 more sources

Hydrogen, Acceptors, and H-Acceptor Complexes in GaN

MRS Proceedings, 1995
ABSTRACTWe present ab-initio calculations on energetics and geometries of atomic hydrogen, of several candidate acceptors, and of H-acceptor complexes in wurtzite GaN For the H-Mg complex in Mg-doped GaN, we calculate the vibrational frequencies of H. Hydrogen is found to be a negative-U center.
BOSIN, ANDREA, FIORENTINI, VINCENZO, Vanderbilt D.   +2 more
openaire   +2 more sources

Donor?acceptor ?double-cable? polythiophenes with tunable acceptor content

Thin Solid Films, 2004
The use of bipolar materials as an active layer in polymeric solar cells can be an alternative to 'bulk-heterojunctions' composed of donor-acceptor blends. We have prepared two series of polyalkylthiophene copolymers having acceptor molecules covalently grafted to the backbone.
Catellani M, Luzzati S, Lupsac NO, Mendichi R, Consonni R, Giacalone F, Segura JL, Martín N   +7 more
openaire   +4 more sources

Donor−Acceptor Phthalocyanine Nanoaggregates

Journal of the American Chemical Society, 2003
A novel donor-acceptor bisphthalocyanine (bis-Pc, 1) in which two different Pc units (Zn(II)-Pc and Ni(II)-Pc) are linked via vinylene spacers to the pseudopara positions of a central [2.2]paracyclophane moiety is described. The synthesis of 1 is achieved by two successive Heck reactions of pseudopara-divinyl[2.2]paracyclophane 9 with, sequentially, a ...
de la Escosura, Andres, Martinez-Diaz, M. Victoria, Thordarson, Pall, Rowan, Alan E., Nolte, Roeland J. M., Torres, Tomas   +5 more
openaire   +4 more sources

Supramolecular Nanowires from an Acceptor–Donor–Acceptor Conjugated Chromophore

Chemistry – A European Journal, 2019
AbstractOligothiophene derivatives have been extensively studied as p‐type semiconducting materials in organic electronics applications. This work reports the synthesis, self‐assembly and photophysical properties of acceptor–donor–acceptor (A–D–A)‐type oligothiophene derivatives by end‐group engineering of quaterthiophene (QT) with naphthalene ...
Saptarshi Chakraborty, Shinto Varghese, Suhrit Ghosh   +2 more
openaire   +2 more sources

20.2% Efficiency Organic Photovoltaics Employing a π‐Extension Quinoxaline‐Based Acceptor with Ordered Arrangement

Advances in Materials
Organic solar cells, as a cutting‐edge sustainable renewable energy technology, possess a myriad of potential applications, while the bottleneck problem of less than 20% efficiency limits the further development.
Zhenyu Chen, Jinfeng Ge, Wei Song, Xinyu Tong, Hui Liu, Xueliang Yu, Jing Li, Jingyu Shi, Lingchao Xie, Chengcheng Han, Quan Liu, Ziyi Ge   +11 more
semanticscholar   +1 more source