Enantiopure versus Racemic Naphthalimide End-Capped Helicenic Non-fullerene Electron Acceptors: Impact on Organic Photovoltaics Performance

被引：66
|
作者：
Josse, Pierre [1 ]
Favereau, Ludovic [2 ]
Shen, Chengshuo [2 ]
Dabos-Seignon, Sylvie [1 ]
Blanchard, Philippe [1 ]
Cabanetos, Clement [1 ]
Crassous, Jeanne [2 ]
机构：
[1] Univ Angers, CNRS, UMR 6200, MOLTECH Anjou, 2 Bd Lavoisier, F-49045 Angers, France
[2] Univ Rennes 1, Inst Phys Rennes, CNRS, Inst Sci Chim Rennes,UMR 6226,UMR 6251, Campus Beaulieu, F-35042 Rennes, France
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2017年 / 23卷 / 26期
关键词：
chirality; enantiopurity; helicene; non-fullerene; organic photovoltaics; HETEROJUNCTION SOLAR-CELLS; HIGH-EFFICIENCY; REGIOREGULAR POLYTHIOPHENES; CHIROPTICAL PROPERTIES; MOLECULAR ACCEPTORS; CIRCULAR-DICHROISM; SIDE-CHAINS; DERIVATIVES; INDUCTION; POLYMERS;
D O I：
10.1002/chem.201701066
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Impact of the enantiopurity on organic photovoltaics (OPV) performance was investigated through the synthesis of racemic and enantiomerically pure naphthalimide end-capped helicenes and their application as non-fullerene molecular electron acceptors in OPV devices. A very strong increase of the device performance was observed by simply switching from the racemic to the enantiopure forms of these -helical non-fullerene acceptors with power conversion efficiencies jumping from 0.4 to about 2.0% in air-processed poly(3-hexylthiophene)-based devices, thus highlighting the key role of enantiopurity in the photovoltaic properties.
引用
收藏
页码：6277 / 6281
页数：5
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