New difluorenylaminocoumarin photosensitizers for dye-sensitized solar cells

被引：0
作者：
Liang Han
Ji He
Jin’ge Zhao
Shaoliang Jiang
机构：
[1] Zhejiang University of Technology,College of Chemical Engineering
[2] Zhejiang University of Technology,College of Pharmaceutical Science
来源：
Research on Chemical Intermediates | 2017年 / 43卷
关键词：
Triarylamine; Coumarin; Sensitizers; Photoelectric conversion;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Three difluorenylaminocoumarin sensitizers with different π-bridges bearing thiophene ring and cyanoacrylic acid acceptor were synthesized and their photophysical properties and photoelectric conversion efficiency were investigated and compared with counterpart dyes with diphenylaminocoumarin donor. Replacement of benzene with fluorene in the donor unit contributed to superior photovoltaic performance. Among the three π-bridges, the thiophene-phenyl π-bridge improved VOC and JSC, resulting in a DSSC with the best photoelectric conversion efficiency (η = 5.94%, VOC = 670 mV, JSC = 14.53 mA cm−2, and fill factor, FF = 0.61).
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页码：5779 / 5794
页数：15
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