Fine-tuning of electronic properties in donor-acceptor conjugated polymers based on oligothiophenes

Imae Ichiro; Sagawa Hitoshi; Harima Yutaka

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Fine-tuning of electronic properties in donor-acceptor conjugated polymers based on oligothiophenes

机译：基于低聚噻吩的供体-受体共轭聚合物的电子性能的微调

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A novel series of donor-acceptor conjugated polymers having oligothiophenes with well-defined structures were synthesized and their optical, electrochemical, and photovoltaic properties were investigated. It was found that the absorption bands of polymers were red-shifted with increasing number of ethylenedioxy groups added to each oligothiophene unit and that their band edges reached over 1000 nm. The systematical fine-tuning of the electronic properties was achieved using the chemical structures of oligothiophene units. Photovoltaic cells based on polymer/(6,6)-phenyl C-61 butyric acid methyl ester (PC61BM) exhibited power conversion efficiencies in the range from 0.004 to 1.10%, reflecting the electronic properties of the polymers. (C) 2018 The Japan Society of Applied Physics

机译：合成了一系列新的具有低聚噻吩结构明确的供体-受体共轭聚合物，并研究了它们的光学，电化学和光伏性质。已经发现，随着向每个低聚噻吩单元中添加的乙二氧基基团数目的增加，聚合物的吸收带发生红移，并且它们的能带边缘超过1000 nm。使用低聚噻吩单元的化学结构可实现对电子性能的系统微调。基于聚合物/（6,6）-苯基C-61丁酸甲酯（PC61BM）的光伏电池表现出0.004至1.10％的功率转换效率，反映了聚合物的电子性能。（C）2018日本应用物理学会

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《Japanese journal of applied physics》 |2018年第3s2期|03EJ01.1-03EJ01.5|共5页
作者
Imae Ichiro; Sagawa Hitoshi; Harima Yutaka;
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Hiroshima Univ, Grad Sch Engn, Dept Appl Chem, Higashihiroshima, Hiroshima 7398527, Japan;

Hiroshima Univ, Grad Sch Engn, Dept Appl Chem, Higashihiroshima, Hiroshima 7398527, Japan;

Hiroshima Univ, Grad Sch Engn, Dept Appl Chem, Higashihiroshima, Hiroshima 7398527, Japan;

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2. Synthesis, characterization, and electronic and optical properties of donor-acceptor conjugated polymers based on alternating bis(3-alkylthiophene) and pyridine moieties [J] . Lu HF., Chan HSO., Ng SC. Macromolecules . 2003,第5期

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Fine-tuning of electronic properties in donor-acceptor conjugated polymers based on oligothiophenes

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