Dissociation of singlet excitons dominates photocurrent improvement in high-efficiency non-fullerene organic solar cells

Qicong Li^a,
b#, Shizhong Yue^a#, Zhitao Huang^a, Chao Li^a, Jiaqian Sun^a, Keqian Dong^a, Zhijie Wang^a*, Kong Liu^a*, and Shengchun Qu^a*

A. Q. C. Li, S. Z. Yue, Z. T. Huang, C. Li, J. Q. Sun, K. Q. Dong, Prof. Z. J. Wang, K. Liu, Prof. S. C. Qu

Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.

Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.

mail: wangzj@semi.ac.cn ,liukong@semi.ac.cn,qsc@semi.ac.cn.

Q. C. Li

China Electronics Standardization Institution, Beijing 100007, China.

# These authors contributed equally.

Keywords: polarized light, organic solar cell, high efficiency, singlet/triplet exciton.