Alkyl Side‐Chain Engineering in Wide‐Bandgap Copolymers Leading to Power Conversion Efficiencies over 10%. Issue 6 (1st December 2016)

• Record Type: Journal Article
• Authors: Liu, Tao; Pan, Xuexue; Meng, Xiangyi; Liu, Yu; Wei, Donghui; Ma, Wei; Huo, Lijun; Sun, Xiaobo; Lee, Tack Ho; Huang, Minjuan; Choi, Hyosung; Kim, Jin Young; Choy, Wallace C. H.; Sun, Yanming
• Is Part Of: Advanced materials. Volume 29:Issue 6(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-12-01
• Subjects: alkyl side chain -- efficiency -- organic solar cells -- wide‐bandgap copolymers; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201604251
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : A series of wide‐bandgap (WBG) copolymers with different alkyl side chains are synthesized. Among them, copolymer PBT1‐EH with moderatly bulky side chains on the acceptor unit shows the best photovoltaic performance with power conversion efficiency over 10%. The results suggest that the alkyl side‐chain engineering is an effective strategy to further tuning the optoelectronic properties of WBG copolymers.