Medium-Bandgap Small-Molecule Donors Compatible with Both Fullerene and Nonfullerene Acceptors

ACS Applied Materials & Interfaces
Yong HuoHao-Li Zhang

Abstract

Much effort has been devoted to the development of new donor materials for small-molecule organic solar cells due to their inherent advantages of well-defined molecular weight, easy purification, and good reproducibility in photovoltaic performance. Herein, we report two small-molecule donors that are compatible with both fullerene and nonfullerene acceptors. Both molecules consist of an (E)-1,2-di(thiophen-2-yl)ethane-substituted (TVT-substituted) benzo[1,2-b:4,5-b']dithiophene (BDT) as the central unit, and two rhodanine units as the terminal electron-withdrawing groups. The central units are modified with either alkyl side chains (DRBDT-TVT) or alkylthio side chains (DRBDT-STVT). Both molecules exhibit a medium bandgap with complementary absorption and proper energy level offset with typical acceptors like PC71BM and IDIC. The optimized devices show a decent power conversion efficiency (PCE) of 6.87% for small-molecule organic solar cells and 6.63% for nonfullerene all small-molecule organic solar cells. Our results reveal that rationally designed medium-bandgap small-molecule donors can be applied in high-performance small-molecule organic solar cells with different types of acceptors.

References

Sep 30, 2009·Chemical Reviews·Yen-Ju ChengChain-Shu Hsu
Feb 22, 2011·Environmental Science & Technology·Annick AnctilBrian J Landi
Feb 22, 2012·Angewandte Chemie·Amaresh Mishra, Peter Bäuerle
Sep 20, 2012·Journal of the American Chemical Society·Jiaoyan ZhouYongsheng Chen
May 25, 2013·Journal of the American Chemical Society·Jiaoyan ZhouYongsheng Chen
Jun 22, 2013·Advanced Materials·Alexander SharenkoGuillermo C Bazan
Aug 30, 2013·Accounts of Chemical Research·Jessica E CoughlinGuillermo C Bazan
Apr 2, 2014·Advanced Materials·Jean RoncaliPhilippe Blanchard
Sep 3, 2014·Chemical Reviews·Xugang GuoTobin J Marks
Oct 15, 2014·Journal of the American Chemical Society·Yu ZhongColin Nuckolls
Jan 13, 2015·Advanced Materials·Yuze LinXiaowei Zhan
Feb 7, 2015·Advanced Materials·Oh Kyu KwonSoo Young Park
Jun 3, 2015·Journal of the American Chemical Society·Ke GaoXiaobin Peng
Aug 8, 2015·Chemical Reviews·Luyao LuLuping Yu
Aug 19, 2015·Journal of the American Chemical Society·Dan SunZhaohui Wang
Aug 20, 2015·Chemical Reviews·Letian DouYang Yang
Oct 10, 2015·Nature Communications·Taesu KimBumjoon J Kim
Feb 26, 2016·Journal of the American Chemical Society·Yuze LinXiaowei Zhan
Mar 26, 2016·Journal of the American Chemical Society·Yuze LinXiaowei Zhan
Jun 3, 2016·Chemical Reviews·Huifeng YaoJianhui Hou
Jan 14, 2017·Journal of the American Chemical Society·Liyan YangJianhui Hou
Mar 16, 2017·Advanced Materials·Fuwen ZhaoXiaowei Zhan
May 18, 2017·Journal of the American Chemical Society·Wenchao ZhaoJianhui Hou
Jul 18, 2017·Advanced Materials·Jiayu WangXiaowei Zhan

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