Premium
Triphenylamine‐Dendronized Pure Red Iridium Phosphors with Superior OLED Efficiency/Color Purity Trade‐Offs
Author(s) -
Zhou Guijiang,
Wong WaiYeung,
Yao Bing,
Xie Zhiyuan,
Wang Lixiang
Publication year - 2007
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200604094
Subject(s) - iridium , triphenylamine , phosphor , oled , materials science , chemistry , photochemistry , optoelectronics , nanotechnology , layer (electronics) , catalysis , organic chemistry
As good as red : Highly efficient pure red OLEDs based on iridium electrophosphors functionalized with hole‐transporting triphenylamine dendrons are prepared (see picture). These bifunctional dendrimers give a peak efficiency of 11.7 % with an excellent color quality and offer an attractive avenue for the development of metal phosphors with the optimized efficiency/color purity trade‐offs required for pure red‐emitting devices. OLED=organic light‐emitting diode.