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A Novel, Bipolar Polymeric Host for Highly Efficient Blue Electrophosphorescence: a Non‐Conjugated Poly(aryl ether) Containing Triphenylphosphine Oxide Units in the Electron‐Transporting Main Chain and Carbazole Units in Hole‐Transporting Side Chains
Author(s) -
Shao Shiyang,
Ding Junqiao,
Ye Tengling,
Xie Zhiyuan,
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.201101074
Subject(s) - phosphine oxide , triphenylphosphine oxide , carbazole , materials science , aryl , oxide , conjugated system , ether , combinatorial chemistry , polymer chemistry , photochemistry , polymer , triphenylphosphine , organic chemistry , chemistry , phosphine , alkyl , metallurgy , composite material , catalysis
A novel, bipolar polymeric host based on a poly(aryl ether) containing phosphine oxide units in the electron‐transporting main chain and carbazole units in the hole‐transporting side chains is designed and synthesized for blue electrophosphorescence. This polymeric host possesses a bipolar character and a high E T of 2.96 eV. The efficiency of blue‐emitting PhPLEDs based on this polymeric host doped with FIrpic reaches 23.3 cd A −1 (EQE = 10.8%).