An indole derivative as a high triplet energy hole transport material for blue phosphorescent organic light-emitting diodes

作者：Park Min Su; Lee Jun Yeob^*

来源：Thin Solid Films, 2013, 548: 603-607.

DOI：10.1016/j.tsf.2013.09.084

• Indole
• High triplet energy
• Hole transport material
• Thermal stability
• Quantum efficiency

A thermally stable high triplet energy material derived from an indoloacridine core and indole hole transport units, 8,8-bis(4-(1H-indol-1-yl)phenyl)-8H-indolo[3,2,1-de]acridine (BIPIA), was synthesized as the hole transport material for deep blue phosphorescent organic light-emitting diodes. The BIPIA hole transport material showed a high triplet energy of 2.95eV and high glass transition temperature of 142 degrees C. A high quantum efficiency of 19.3% was obtained in the deep blue device using BIPIA as the high triplet energy hole transport material.

• 出版日期2013-12-2