High-Performance Electron Acceptor with Thienyl Side Chains for Organic Photovoltaics

Lin, Yuze; Zhao, Fuwen; He, Qiao; Huo, Lijun; Wu, Yang; Parker, Timothy C.; Ma, Wei; Sun, Yanming; Wang, Chunru; Zhu, Daoben; Heeger, Alan J.; Marder, Seth R.; Zhan, Xiaowei

doi:10.1021/jacs.6b02004

articleJournal of the American Chemical SocietyMar 25, 2016Closed access

High-Performance Electron Acceptor with Thienyl Side Chains for Organic Photovoltaics

YLYuze Lin FZFuwen Zhao QHQiao He LHLijun Huo YWYang Wu

Capital Normal University · Chinese Academy of Sciences · +5 more institutions

PubMed

Indexed incrossrefpubmed

Abstract

We develop an efficient fused-ring electron acceptor (ITIC-Th) based on indacenodithieno[3,2-b]thiophene core and thienyl side-chains for organic solar cells (OSCs). Relative to its counterpart with phenyl side-chains (ITIC), ITIC-Th shows lower energy levels (ITIC-Th: HOMO = -5.66 eV, LUMO = -3.93 eV; ITIC: HOMO = -5.48 eV, LUMO = -3.83 eV) due to the σ-inductive effect of thienyl side-chains, which can match with high-performance narrow-band-gap polymer donors and wide-band-gap polymer donors. ITIC-Th has higher electron mobility (6.1 × 10(-4) cm(2) V(-1) s(-1)) than ITIC (2.6 × 10(-4) cm(2) V(-1) s(-1)) due to enhanced intermolecular interaction induced by sulfur-sulfur interaction. We fabricate OSCs by…

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Topics & keywords

Topics

Keywords

Chemistry
Organic solar cell
Photovoltaics
Electron acceptor
Acceptor
Side chain
Photochemistry
Electron

UN Sustainable Development Goals

Affordable and clean energy

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