Synthesis and characterization of high triplet energy polyfluorene bearing m-tetraphenylsilane segment as a polymer host for green phosphorescent polymer light emitting diodes
作者： Qinghua Zhao , Wanyun Zhang , Zhuxin Fan , Jinjin Li , Xiaomin Chen
DOI: 10.1016/J.SYNTHMET.2015.03.013
关键词:
摘要: Abstract A high triplet energy ( E T ) copolymer P2SiF, derived from 2,7-fluorene and m -tetraphenylsilane segment, was synthesized as a green host for phosphorescent polymer light emitting diodes. The photophysical properties device performances of P2SiF were studied compared with previous P1SiF p segment. depicted higher level up 2.60 eV than that P1SiF, which probably one the highest conjugated polymers poly(2,7-fluorene) structure. While doped phosphor tris[2-( -tolyl)pyridine]iridium [Ir(mppy) 3 ], hosted by showed better performance maximum efficiency 3.36 cd/A low concentration 4 wt% Ir(mppy) 3.
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