High-Efficiency Nonfullerene Polymer Solar Cells with Medium Bandgap Polymer Donor and Narrow Bandgap Organic Semiconductor Acceptor

Liang Gao; Zhi-Guo Zhang; Haijun Bin; Lingwei Xue; Yankang Yang; Cheng Wang; Feng Liu; Thomas P Russell; Yongfang Li

doi:10.1002/adma.201601595

High-Efficiency Nonfullerene Polymer Solar Cells with Medium Bandgap Polymer Donor and Narrow Bandgap Organic Semiconductor Acceptor

Adv Mater. 2016 Oct;28(37):8288-8295. doi: 10.1002/adma.201601595. Epub 2016 Jul 7.

Authors

Liang Gao^{1

2}, Zhi-Guo Zhang³, Haijun Bin^{1

2}, Lingwei Xue¹, Yankang Yang^{1

2}, Cheng Wang⁴, Feng Liu⁵, Thomas P Russell⁶, Yongfang Li^{7

8

9}

Affiliations

¹ Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
² University of Chinese Academy of Sciences, Beijing, 100049, China.
³ Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. zgzhangwhu@iccas.ac.cn.
⁴ Advanced Light Source, Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA.
⁵ Materials Sciences Division, Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA. iamfengliu@gmail.com.
⁶ Polymer Science and Engineering Department, University of Massachusetts, Amherst, MA, 01003, USA.
⁷ Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. liyf@iccas.ac.cn.
⁸ University of Chinese Academy of Sciences, Beijing, 100049, China. liyf@iccas.ac.cn.
⁹ Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, China. liyf@iccas.ac.cn.

PMID: 27386802
DOI: 10.1002/adma.201601595

Abstract

A nonfullerene polymer solar cell with a high efficiency of 9.26% is realized by using benzodithiophene-alt-fluorobenzotriazole copolymer J51 as a medium-bandgap polymer donor and the low-bandgap organic semiconductor ITIC with high extinction coefficients as the acceptor.

Keywords: ITIC; extinction coefficients; fluorinated conjugated polymer donors; nonfullerene polymer solar cells.