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Anthracene‐Based Medium Bandgap Conjugated Polymers for High Performance Polymer Solar Cells Exceeding 8% PCE Without Additive and Annealing Process
Author(s) -
Jung Jae Woong,
Liu Feng,
Russell Thomas P.,
Jo Won Ho
Publication year - 2015
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.201500065
Subject(s) - materials science , polymer , energy conversion efficiency , band gap , annealing (glass) , conjugated system , chemical engineering , charge carrier , anthracene , fluorine , polymer solar cell , intermolecular force , photochemistry , optoelectronics , organic chemistry , composite material , molecule , chemistry , engineering , metallurgy
A series of medium bandgap polymers based on 9,10‐thienylanthracene and benzothiadiazole are synthesized. The optical, electrochemical, intermolecular, and charge transport characteristics of the polymers are tuned by the introduction of various substituents. The fluorine‐substituted polymer exhibits much enhanced charge generation with reduced bimolecular recombination, thereby achieving a high power conversion efficiency exceeding 8%.