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Solar Cells: Design of Cyanovinylene‐Containing Polymer Acceptors with Large Dipole Moment Change for Efficient Charge Generation in High‐Performance All‐Polymer Solar Cells (Adv. Energy Mater. 3/2018)
Author(s) -
Cho HanHee,
Kim Seonha,
Kim Taesu,
Sree Vijaya Gopalan,
Jin SungHo,
Kim Felix Sunjoo,
Kim Bumjoon J.
Publication year - 2018
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.201870011
Subject(s) - materials science , polymer solar cell , polymer , dipole , energy conversion efficiency , organic solar cell , photovoltaic system , dissociation (chemistry) , exciton , electron , electron acceptor , charge (physics) , optoelectronics , photochemistry , chemistry , condensed matter physics , physics , organic chemistry , composite material , electrical engineering , quantum mechanics , engineering
In article number 1701436 by Bumjoon J. Kim and co‐workers, a series of naphthalenediimide‐based polymer acceptors with superior electron mobility and large dipole moment difference is developed by incorporating electron‐withdrawing cyanovinylene groups into a polymer backbone. All‐polymer solar cells based on these polymers generate outstanding power conversion efficiency of 7.4% with high fill factor (65%), by virtue of the high electron transport and efficient exciton dissociation with greatly suppressed charge recombination.