A wide-bandgap copolymer donor with a 5-methyl-4H-dithieno[3,2-e:2',3'-g]isoindole-4,6(5H)-dione unit

Anxin Sun; Jingui Xu; Guanhua Zong; Zuo Xiao; Yong Hua; Bin Zhang; Liming Ding

doi:10.1088/1674-4926/42/10/100502

J. Semicond. > 2021, Volume 42?>?Issue 10?> 100502

SHORT COMMUNICATION

A wide-bandgap copolymer donor with a 5-methyl-4H-dithieno[3,2-e:2',3'-g]isoindole-4,6(5H)-dione unit

Anxin Sun^{1, 2}, Jingui Xu^{2, 3}, Guanhua Zong², Zuo Xiao^2,, Yong Hua^1,, Bin Zhang^3, and Liming Ding^2,

+ Author Affiliations

1. Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming 650091, China
2. Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China
3. School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China

Author Bio:

Anxin Sun got his BS from Yunnan University. Now he is a master student at Yunnan University under the supervision of Prof. Yong Hua. Since August 2019, he has been working in Liming Ding Lab at National Center for Nanoscience and Technology as a visiting student. His work focuses on organic solar cells.

Jingui Xu got his BS from Yancheng Institute of Technology. Now he is a master student at Changzhou University under the supervision of Prof. Bin Zhang. Since September 2019, he has been working in Liming Ding Lab at National Center for Nanoscience and Technology as a visiting student. His work focuses on organic solar cells.

Zuo Xiao got his BS and PhD degrees from Peking University under the supervision of Prof. Liangbing Gan. He did postdoctoral research in Eiichi Nakamura Lab at the University of Tokyo. In March 2011, he joined Liming Ding Group at National Center for Nanoscience and Technology as an associate professor. In April 2020, he was promoted to be a full professor. His current research focuses on organic solar cells.

Yong Hua received his PhD in Hong Kong Baptist University in 2014. He then moved to KTH-Royal Institute of Technology as a postdoc. Since 2017, he is an associate professor in Materials Chemistry at Yunnan University. His current research focuses on perovskite solar cells.

Bin Zhang got his BS from East China University of Technology in 2005. Then, he got his MS and PhD from South China University of Technology (SCUT) in 2008 and 2012, respectively. From 2013 to 2017, he did postdoctoral research in SCUT and Shenzhen University. In 2018, he joined Changzhou University and was appointed as an associate professor. His research focuses on organic semiconductors and perovskite solar cells.

Liming Ding got his PhD from University of Science and Technology of China (was a joint student at Changchun Institute of Applied Chemistry, CAS). He started his research on OSCs and PLEDs in Olle Ingan?s Lab in 1998. Later on, he worked at National Center for Polymer Research, Wright-Patterson Air Force Base and Argonne National Lab (USA). He joined Konarka as a Senior Scientist in 2008. In 2010, he joined National Center for Nanoscience and Technology as a full professor. His research focuses on innovative materials and devices. He is RSC Fellow, the nominator for Xplorer Prize, and the Associate Editors for Science Bulletin and Journal of Semiconductors.

Corresponding author: Zuo Xiao, xiaoz@nanoctr.cn; Yong Hua, huayong@ynu.edu.cn; Bin Zhang, msbinzhang@outlook.com; Liming Ding, ding@nanoctr.cn

DOI: 10.1088/1674-4926/42/10/100502

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Fig. 1. (a) The structures of D18 and P1, and DFT-predicted molecular geometries, HOMO and LUMO of DTBT and MDTID units. (b) The synthetic route for P1. (c) Absorption spectra for P1 in CHCl₃, and P1, N3 and IT-4F films. (d) J–V curves for P1:N3 and P1:IT-4F solar cells. (e) EQE spectra for P1:N3 and P1:IT-4F solar cells.

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Table 1. Performance data for P1:N3 and P1:IT-4F solar cells.