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Green Electrophosphorescent Polymers with Poly(3,6‐Carbazole) as the Backbone: A Linear Structure Does Realize High Efficiency
Author(s) -
Ma Zhihua,
Chen Lingcheng,
Ding Junqiao,
Wang Lixiang,
Jing Xiabin,
Wang Fosong
Publication year - 2011
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.201102140
Subject(s) - carbazole , materials science , phosphorescence , polymer , dendrimer , side chain , iridium , polymer chemistry , linear polymer , chemical engineering , photochemistry , fluorescence , organic chemistry , composite material , optics , chemistry , physics , catalysis , engineering
Linear green light‐emitting electrophosphorescent polymers have been successfully developed by chemically attaching a benzoimidazole‐based iridium complex to the side chain of poly(3,6‐carbazole). Efficiency values as high as 33.9 cd A −1 are obtained, indicating that the linear structure in the absence of an encapsulation effect can also lead to a device performance that is comparable with that of either dendrimer or hyperbranched polymers.