Improved power efficiency in deep blue phosphorescent organic light-emitting diodes using an acridine core based hole transport material
摘要:
A high triplet energy hole transport material with an acridine core was synthesized as the hole transport material for deep blue phosphorescent organic light emitting diodes. The acridine core based hole transport material showed a high triplet energy of 2.89 eV for efficient triplet exciton blocking and highest occupied molecular orbital of 5.96 eV for efficient hole injection in deep blue phosphorescent organic light-emitting diodes. The acridine core based hole transport material showed low driving voltage than common high triplet energy hole transport material and power efficiency of deep blue phosphorescent organic light-emitting diodes was improved by more than 50%. (C) 2012 Elsevier B.V. All rights reserved.
Provided is an organic light emitting device (OLED) comprising 9,10-dihydroacridine derivative represented by the following Formula (I):
The 9,10-dihydroacridine derivative can be used as a hole transport material or an emission material of an organic light emitting device. With the aromaticity of the 9,10-dihydroacridine derivative, the OLED can have improved current efficiency and chromaticity.