Photovoltaic molecules based on vinylene-bridged oligothiophene applied for bulk-heterojunction organic solar cells

Jing Zhang; Pan Yin; Linjun Xu; Ping Shen; Mingfu Ye; Ningyi Yuan; Jianning Ding

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Photovoltaic molecules based on vinylene-bridged oligothiophene applied for bulk-heterojunction organic solar cells

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cqvip:We have synthesized two photovoltaic molecules(HEX-3TVT-ID and EH-3TVT-ID) based on vinylenebridged oligothiophene applied as donor for the solution-processable bulk-heterojunction organic solar cells(OSCs). Vinylene unit was introduced as π-bridge in the oligothiophenes with 1,3-indenedione as end group and 4,4'-dihexyl-2,2':5',2'-terthiophene or 3',4'-di(octan-3-yl)-2,2':5',2'-terthiophene as core,respectively. Due to the different substituent positions of the alkyl group relative to the vinylene unit in the terthiophene, HEX-3TVT-ID and EH-3TVT-ID show different optical and electrochemical properties, corresponding to the photovoltaic performance of the OSCs devices. The power conversion efficiency(PCE) of the OSCs based on a blend of HEX-3TVT-ID and PC_(71)BM(1:0.8, weight ratio, 0.5% CN) reached 2.3%. In comparison, the OSCs based on the blend of EH-3TVT-ID and PC_(71)BM in the weight ratio of 1:1 without the additive show a higher PCE of 2.7%, with a typically high V_(OC) of 0.93 V, under the illumination of AM 1.5, 100 mW cm^(-2).

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来源
《能源化学：英文版》 |2018年第2期|P.426-431|共6页
作者
Jing Zhang; Pan Yin; Linjun Xu; Ping Shen; Mingfu Ye; Ningyi Yuan; Jianning Ding;
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作者单位

[1]School of Material Science ＆ Engineering;

Jiangsu Collaborative Innovation Center of Photovoltaic Science ＆ Engineering;

Changzhou University;

Changzhou 213164;

Jiangsu;

China;

[2]College of Chemistry and Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education;

Xiongtan University;

Xiongtan 411105;

Hunan;

China;

[1]School of Material Science ＆ Engineering;

Jiangsu Collaborative Innovation Center of Photovoltaic Science ＆ Engineering;

Changzhou University;

Changzhou 213164;

Jiangsu;

China;

[2]College of Chemistry and Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education;

Xiongtan University;

Xiongtan 411105;

Hunan;

China;

[3]School of Chemistry and Chemical Engineering Anhui University of Technology;

Maanshan 243002;

Anhui;

China;

[1]School of Material Science ＆ Engineering;

Jiangsu Collaborative Innovation Center of Photovoltaic Science ＆ Engineering;

Changzhou University;

Changzhou 213164;

Jiangsu;

China;

[1]School of Material Science ＆ Engineering;

Jiangsu Collaborative Innovation Center of Photovoltaic Science ＆ Engineering;

Changzhou University;

Changzhou 213164;

Jiangsu;

China;

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原文格式 PDF
正文语种 CHI
中图分类非欧几何、多维空间几何;
关键词
太阳能电池; 光电; 器官; 异质; 体积; 子基; 混合显示; 电气化学;

机译：太阳能电池;光电;器官;异质;体积;子基;混合显示;电气化学;

Photovoltaic molecules based on vinylene-bridged oligothiophene applied for bulk-heterojunction organic solar cells

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