Abstract
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 2.89eV for efficient triplet exciton blocking and highest occupied molecular orbital of 5.96eV 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%.
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