Date：2016-01-14 |
Views：1744 |
OLED Information 20160114 |
New Benzimidazole-Based Bipolar Hosts: Highly Efficient Phosphorescent and Thermally Activated Delayed Fluorescent OLEDs Employing the Same Device Structure
Article excerpt is from : Yali Zhao, Chao Wu, Panlong Qiu, Xiaoping Li, Qiang Wang, Jiangshan Chen, and Dongge Ma
Applied Materials & Interfaces, 2015, in press
Three novel hosts, o-mCPBI, m-mCPBI, and p-mCPBI have been developed by incorporating benzimidazole unit into mCP via ortho-, meta-, and para-position of N-phenyl.
m-mCPBI can achieve highly efficient phosphorescent monochromatic and white OLEDs, and o-mCPBI has been demonstrated to be an universal host for high-performance both phosphorescent and TADF OLEDs. The blue, green, yellow, red, and white phosphorescent OLEDs with EQEs of 20% or higher have been realized by using o-mCPBI as the host.
