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Tri ‐Diketopyrrolopyrrole Molecular Donor Materials for High‐Performance Solution‐Processed Bulk Heterojunction Solar Cells
Author(s) -
Liu Jianhua,
Sun Yanming,
Moonsin Preecha,
Kuik Martijn,
Proctor Christopher M.,
Lin Jason,
Hsu Ben B.,
Promarak Vinich,
Heeger Alan J.,
Nguyen ThucQuyen
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201302007
Subject(s) - materials science , alkyl , conjugated system , molecule , energy conversion efficiency , polymer solar cell , chemical engineering , heterojunction , molecular engineering , small molecule , combinatorial chemistry , nanotechnology , organic chemistry , optoelectronics , polymer , chemistry , biochemistry , engineering , composite material
Two new high‐performance DPP‐containing donor molecules employing a molecular architecture with three DPP chromorphores ( tri ‐DPP) in conjugated backbones are synthesized and characterized. The two tri ‐DPP molecules with only a structural difference on alkyl substitutions, when blended with PC 71 BM, lead to power conversion efficiencies up to 4.8 and 5.5%, respectively.