A medium-bandgap small molecule donor compatible with both fullerene and unfused-ring nonfullerene acceptors for efficient organic solar cells. Issue 43 (25th October 2019)

• Record Type: Journal Article
• Authors: Chen, Xianjie; Ding, Xueyan; Zhang, Qian; Wang, Di; Zhan, Lingling; Lu, Xinhui; Wu, Feifei; Xu, Zheng; Qiu, Huayu; Chen, Wanzhi; Li, Chang-Zhi
• Is Part Of: Journal of materials chemistry. Volume 7:Issue 43(2019)
• Page Start: 13396
• Page End: 13401
• Publication Date: 2019-10-25
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c9tc04680a
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : A small molecule donor DRC4TB was designed and synthesized, which worked well with both PC71 BM and unfused-ring acceptor HF-PCIC. Abstract : Here we designed and synthesized a new small molecule donor DRC4TB with an alkylthiothienyl-substituted benzodithiophene as the core and 3-butyl rhodanine as the terminal group, which showed an optical bandgap of 1.87 eV. DRC4TB was compatible with both a fullerene acceptor (PC71 BM) and an unfused-ring nonfullerene acceptor (HF-PCIC). The optimized DRC4TB:PC71 BM and DRC4TB:HF-PCIC solar cells delivered comparable power conversion efficiencies (PCEs) of 8.53% and 8.68%, respectively.