题目：

Effective Host Materials for Blue/White Organic Light-Emitting Diodes by Utilizing the Twisted Conjugation Structure in 10-Phenyl-9,10-Dihydroacridine Block

作者：

Xiang-Yang Liu, Feng Liang, Lin-Song Cui, Xiao-Dong Yuan, Dr. Zuo-Quan Jiang^* and Prof. Dr. Liang-Sheng Liao^*

单位：

Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China.

摘要：

Two new 10-phenyl-9, 10-dihydroacridine derivatives attached by dibenzothiophene (DBT) and dibenzofuran (DBF) are synthesized. The influence of the substituents of these materials is studied by theoretical calculations (DFT calculation) and experimental measurements. Thanks to the twisted N-phenyl ring, both molecules possess sufficiently high triplet energies and are suitable for hosts for phosphorescent organic light-emitting diodes. To evaluate the electroluminescent (EL) performance of these materials, FIrpic based blue PHOLEDs and two-color white PHOLEDs (FIrpic and PO-01 as the dopants) were fabricated using the common device structures. High external quantum efficiencies (EQE) of 21.1% and 20.9% for FIrpic based blue PHOLEDs were achieved by FPhAc and TPhAc, respectively. The white device based on host FPhAc was achieved higher performance with maximum EQE of 24.7% than used TPhAc as host material.

影响因子：

4.587

分区情况：

2区

链接：

http://onlinelibrary.wiley.com/doi/10.1002/asia.201500235/abstract