Symmetrical acceptor-donor-acceptor type benzodithiophene based organic semiconductors for solution processed bulk heterojunction solar cells: optimization of open-circuit photovoltage with long alkyl group

被引：0
|
作者：
Li, Wenqin [1 ]
Wu, Zihua [1 ]
Wu, Min [2 ]
Cai, Xiongmin [1 ]
Wang, Jinmin [1 ]
机构：
[1] Shanghai Polytech Univ, Coll Engn, Sch Environm & Mat Engn, Shanghai 201209, Peoples R China
[2] Univ Gothenburg, Dept Chem & Mol Biol, S-40530 Gothenburg, Sweden
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2017年 / 11卷 / 11-12期
关键词：
BHJ solar cells; A-D-A type semiconductors; Benzodithiophene; Cyclopentadithiophene; PI-A; PERFORMANCE; COPOLYMERS; SEPARATION; BLENDS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Symmetrical acceptor-donor-acceptor type benzodithiophene cored organic semiconductor with cyclopentadithiophene as p bridge, rhodanine as end group was synthesized. Their optical, electrochemical properties and photovoltaic performance acting as donor material in solution processed bulk heterojunction (BHJ) organic solar cells were investigated systematically. Theory calculation study was performed using density functional (DFT) and TD-DFT. WS-53 exhibited an ideal absorption profile in chloroform, with a theory voltage of 1.17 V for WS-53/PC71BM based BHJ solar cells. Under annealing treatment at 80 degrees C, an overall power conversion efficiency of 1.04% was obtained with photocurrent density of 4.25 mA cm(-2) and voltage of 0.94 V.
引用
收藏
页码：659 / 664
页数：6
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