Cyano-functionalized pyrazine: an electron-deficient unit as a solid additive enables binary organic solar cells with 19.67% efficiency

Author:

Tu Lijun1,Wang Hao1,Duan Weixu2,Ma Ruijie3ORCID,Jia Tao4,Dela Peña Top Archie56ORCID,Luo Yongmin5,Wu Jiaying5ORCID,Li Mingjie6,Xia Xiaomin1,Wu Siqi1,Chen Kai2,Wu Yue7ORCID,Huang Yulin89,Yang Kun89,Li Gang3ORCID,Shi Yongqiang1ORCID

Affiliation:

1. Key Laboratory of Functional Molecular Solids, Ministry of Education, and School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China

2. Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key lab of new Processing Technology for Nonferrous Metals and Materials, Ministry of Education, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China

3. Department of Electrical and Electronic Engineering, Research Institute of Smart Energy (RISE), Photonic Research Institute (PRI), The Hong Kong Polytechnic University, Hung Hum Kowloon, Hong Kong 999077, China

4. School of Optoelectronic Engineering, School of Mechanical Engineering, Guangdong Polytechnic Normal University, Guangzhou, 510665, China

5. Advanced Materials Thrust, Function Hub, The Hong Kong University of Science and Technology, Nansha, Guangzhou, 511400, China

6. Faculty of Science, Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, 999077, P. R. China

7. Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry Chemical Engineering and Materials Science, Soochow University, Jiangsu, Suzhou 215123, China

8. State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China

9. Shenzhen Research Institute of Hunan University, Shenzhen 518000, China

Abstract

A strong electron-deficient unit CNPz as a solid additive was developed in PTQ10/m-BTP-PhC6 binary organic solar cells. A high PCE of 19.67% was achieved with a significant increase of the JSC and FF (81.8%).

Funder

National Natural Science Foundation of China

Natural Science Foundation of Anhui Province

Publisher

Royal Society of Chemistry (RSC)

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