The Role of the Axial Substituent in Subphthalocyanine Acceptors for Bulk-Heterojunction Solar Cells

被引:110
作者
Duan, Chunhui [1 ]
Zango, German [2 ]
Garcia Iglesias, Miguel [2 ,3 ]
Colberts, Fallon J. M. [1 ]
Wienk, Martijn M. [1 ,4 ]
Victoria Martinez-Diaz, M. [2 ]
Janssen, Rene A. J. [1 ,4 ]
Torres, Tomas [2 ,3 ]
机构
[1] Eindhoven Univ Technol, Inst Complex Mol Syst, Mol Mat & Nanosyst, POB 513, NL-5600 MB Eindhoven, Netherlands
[2] Univ Autonoma Madrid, Dept Organ Chem, C Francisco TomasyValiente 7, E-28049 Madrid, Spain
[3] IMDEA Nanociencia, C Faraday 9,Campus Cantoblanco, Madrid 28049, Spain
[4] Dutch Inst Fundamental Energy Res, De Zaale 20, NL-5612 AJ Eindhoven, Netherlands
基金
欧洲研究理事会; 欧盟第七框架计划;
关键词
bulk heterojunctions; electron acceptors; solar cells; subphthalocyanines; substitution effects; NON-FULLERENE; BORON SUBPHTHALOCYANINES; ELECTRON-ACCEPTORS; ORGANIC PHOTOVOLTAICS; 11-PERCENT EFFICIENCY; POLYMER; DERIVATIVES; MOBILITY;
D O I
10.1002/anie.201608644
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Four hexachlorosubphthalocyanines SubPcCl(6)-X bearing different axial substituents (X) have been synthesized for use as novel electron acceptors in solution-processed bulk-heterojunction organic solar cells. Subphthalocyanines are aromatic chromophoric molecules with cone-shaped structure, good solution processability, intense optical absorption in the visible spectral region, appropriate electron mobilities, and tunable energy levels. Solar cells with subphthalocyanines as the electron acceptor and PTB7-Th as the electron donor exhibit a power conversion efficiency up to 4% and an external quantum efficiency approaching 60% due to significant contributions from both the electron donor and the electron acceptor to the photocurrent, indicating a promising prospect of non-fullerene acceptors based on subphthalocyanines and structurally related systems.
引用
收藏
页码:148 / 152
页数:5
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