Correlation of the π-conjugation chain length and the property and photovoltaic performance of benzo[1,2-b:4,5-b′]dithiophene-cored A-π-D-π-A type molecules
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- 作者：Lilei Wanga ; b ; Ying Zhangc ; Ni Yinb ; Yi Lind ; Wei Gaob ; Qun Luob ; Hongwei Tanc ; Hai-Bo Yanga ; hbyang@chem.ecnu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Chang-Qi Mab ; cqma2011@sinano.ac.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：A-π-D-π-A small molecule ; Benzo[1 ; 2-b ; 4 ; 5-b']dithiophene derivative ; Regioregular oligothiophene π-bridge ; Organic solar cell ; DFT calculation
- 刊名：Solar Energy Materials and Solar Cells
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：157
- 期：Complete
- 页码：831-843
- 全文大小：3351 K
文摘
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BDT-cored A-π-D-π-A molecules with regioregular oligothiophene π-bridge were reported.
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Systematical investigation on the π-conjugation length effect was carried out.
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A positive correlation of chain length and performance was reported for the first time.
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A high PCE of 5.14% was achieved for the COOP-4HT-BDT:PC71BM based device.