Stereoisomerism of ladder-type acceptor molecules and its effect on photovoltaic properties

被引：4
作者：
Cao, Jian [1 ]
Shan, Tong [2 ]
Wang, Ji-Kang [1 ]
Xu, Yun-Xiang [1 ]
Ren, Xiancheng [1 ]
Zhong, Hongliang [2 ]
机构：
[1] Sichuan Univ, State Key Lab Polymer Mat Engn, Coll Polymer Sci & Engn, Chengdu 610065, Sichuan, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China
来源：
DYES AND PIGMENTS | 2019年 / 165卷
基金：
中国国家自然科学基金;
关键词：
Stereoisomerism; Ladder-type acceptor; Crystallinity; Intermolecular packing; Photovoltaic properties; POLYMER SOLAR-CELLS; ELECTRON-ACCEPTOR; FULLERENE; PERFORMANCE; EFFICIENT; VOLTAGE; IMPACT;
D O I：
10.1016/j.dyepig.2019.02.046
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Asymmetrical side chains were widely used in conjugated molecules, but related stereoisomeric phenomenan is rarely investigated. Herein, two stereoisomers based on ladder-type acceptor IDT-BT-R with asymmetrical side chains were synthesized and their properties were studied. Compared to cis-IDT-BT-R, trans-IDT-BT-R with centrosymmetrical structure showed stronger crystallinity and more ordered molecular packing. As a result, trans-IDT-BT-R based photovoltaic devices exhibited higher charge transport properties and superior power conversion efficiency (PCE) up to 9.43%.
引用
收藏
页码：354 / 360
页数：7
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