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Highly Efficient Red Phosphorescent Dopants in Organic Light‐Emitting Devices
Author(s) -
Kim Do Han,
Cho Nam Sung,
Oh HyoungYun,
Yang Joong Hwan,
Jeon Woo Sik,
Park Jung Soo,
Suh Min Chul,
Kwon Jang Hyuk
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.201100405
Subject(s) - phosphorescence , dopant , iridium , materials science , phosphorescent organic light emitting diode , quinoline , ring (chemistry) , photochemistry , optoelectronics , oled , doping , nanotechnology , fluorescence , optics , organic chemistry , catalysis , chemistry , physics , layer (electronics)
Highly efficient red phosphorescent dopants in organic light‐emitting devices have been explored by using a cyclometalated iridium complex with a fully methylated phenyl ring and a quinoline ring as well as a sterically crowded ancillary ligand. The red phosphorescent devices with these dopants give extremely high external quantum efficiencies.