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Thiophene–Thiazolothiazole Copolymers: Significant Impact of Side Chain Composition on Backbone Orientation and Solar Cell Performances
Author(s) -
Osaka Itaru,
Saito Masahiko,
Koganezawa Tomoyuki,
Takimiya Kazuo
Publication year - 2014
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.201303059
Subject(s) - thiophene , copolymer , side chain , materials science , orientation (vector space) , composition (language) , organic solar cell , solar cell , polymer chemistry , chemical engineering , chain (unit) , organic chemistry , polymer , optoelectronics , composite material , chemistry , geometry , physics , linguistics , mathematics , philosophy , engineering , astronomy
The backbone orientation in the thiophene–thiazolothiazole (TzTz) copolymer system can be altered by tuning of the alky side chain composition. We highlight that the orientation significantly impact their solar cell efficiency in particular when using thicker active layers.