Design and Synthesis of a Low Bandgap Small Molecule Acceptor for Efficient Polymer Solar Cells

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• 作者：Huifeng Yao ; Yu Chen ; Yunpeng Qin ; Runnan Yu ; Yong Cui ; Bei Yang ; Sunsun Li ; Kai Zhang and Jianhui Hou
• 刊名：Advanced Materials
• 出版年：2016
• 出版时间：October 5, 2016
• 年：2016
• 卷：28
• 期：37
• 页码：8283-8287
• 全文大小：1091K
• ISSN：1521-4095

文摘

A novel non-fullerene acceptor, possessing a very low bandgap of 1.34 eV and a high-lying lowest unoccupied molecular orbital level of −3.95 eV, is designed and synthesized by introducing electron-donating alkoxy groups to the backbone of a conjugated small molecule. Impressive power conversion efficiencies of 8.4% and 10.7% are obtained for fabricated single and tandem polymer solar cells.