A novel spiro-annulated benzimidazole host for highly efficient blue phosphorescent organic light-emitting devices

作者：Chen, Wen-Cheng; Yuan, Yi; Zhu, Ze-Lin; Ni, Shao-Fei; Jiang, Zuo-Quan; Liao, Liang-Sheng^*; Wong, Fu-Lung; Lee, Chun-Sing^*

来源：Chemical communications, 2018, 54(36): 4541-4544.

DOI：10.1039/c8cc00903a

• ACTIVATED DELAYED FLUORESCENCE
• HIGH-POWER-EFFICIENCY
• ROLL-OFF
• DIODES
• DERIVATIVES
• EMISSION

A novel host material featuring a spiro-annulated benzimidazole configuration is exploited for blue phosphorescent organic light-emitting devices (PhOLEDs). The new material exhibits a high triplet energy (3.07 eV) and a bipolar characteristic and is effective as the host for FIrpic-, FIr6- and FK306-based blue PhOLEDs with high performances.

• 出版日期2018-5-4
• 单位苏州大学; 香港城市大学