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Pyridine‐Modified Acridine‐Based Bipolar Host Material for Green Phosphorescent Organic Light‐Emitting Diodes
Author(s) -
Kim Mounggon,
Lee Jun Yeob
Publication year - 2012
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201101030
Subject(s) - phosphorescence , acridine , oled , diode , materials science , optoelectronics , host (biology) , quantum efficiency , pyridine , photochemistry , phosphorescent organic light emitting diode , chemistry , fluorescence , nanotechnology , optics , layer (electronics) , organic chemistry , physics , biology , ecology
A bipolar host material with a phenyl‐modified acridine core and a pyridine unit in the molecular structure was synthesized as the host material for green phosphorescent organic light‐emitting diodes (PHOLEDs). A high triplet energy of 2.76 eV was obtained from the host and a high quantum efficiency of 13.5 % was achieved in green PHOLEDs using the acridine‐based host material.