Acceptor End-Capped Oligomeric Conjugated Molecules with Broadened Absorption and Enhanced Extinction Coefficients for High-Efficiency Organic Solar Cells
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- 作者：Liu Yuan ; Kun Lu ; Benzheng Xia ; Jianqi Zhang ; Zhen Wang ; Zaiyu Wang ; Dan Deng ; Jin Fang ; Lingyun Zhu and Zhixiang Wei
- 刊名：Advanced Materials
- 出版年：2016
- 出版时间：July 27, 2016
- 年：2016
- 卷：28
- 期：28
- 页码：5980-5985
- 全文大小：1503K
- ISSN：1521-4095
文摘
Acceptor end-capping of oligomeric conjugated molecules is found to be an effective strategy for simultaneous spectral broadening, extinction coefficient enhancement, and energy level optimization, resulting in profoundly enhanced power conversion efficiencies (of 9.25% and 8.91%) compared to the original oligomers. This strategy is effective in overcoming the absorption disadvantage of oligomers and small molecules due to conjugation limitation.