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Side‐Chain Tunability via Triple Component Random Copolymerization for Better Photovoltaic Polymers
Author(s) -
Chang WeiHsuan,
Gao Jing,
Dou Letian,
Chen ChunChao,
Liu Yongsheng,
Yang Yang
Publication year - 2014
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201300864
Subject(s) - materials science , copolymer , triethylene glycol , side chain , polymer , photovoltaic system , component (thermodynamics) , stack (abstract data type) , energy conversion efficiency , band gap , chain (unit) , polymer chemistry , chemical engineering , optoelectronics , composite material , computer science , electrical engineering , physics , astronomy , thermodynamics , engineering , programming language
Using a triple component random copolymerization approach , the amount of triethylene glycol (TEG) side chain , which can be regarded as a stack‐inducing agent, is introduced precisely into a given polymer backbone. TEG side chains result in a more favorable morphology in a polymer:fullerene blend. Based on the low‐bandgap photovoltaic polymer PBDTT‐DPP (PBD), this methodology can bring a 10% overall improvement in power conversion efficiency (PCE).