Imidazolyl‐Phenylcarbazole‐Based Host Materials and Their Use for Co‐host Designs in Phosphorescent OLEDs
作者:Rong‐Huei Yi、Ya‐Chun Lei、Yeh‐Hsiang Tseng、Yi‐Fan Lin、Yen‐Chia Cheng、Yu‐Chuan Fang、Cheng‐Yung Ho、Wei‐Wen Tsai、Chih‐Hao Chang、Chin‐Wei Lu
DOI:10.1002/chem.202102966
日期:2022.1.3
A series of imidazolyl-phenylcarbazole-based host materials, i. e., im-CzP, im-CzPCz, im-CzPtBu, and im-OCzP, were synthesized to obtain high-efficiency green and red-emitting PhOLEDs. An electron transport material, bis-4,6-(3,5-di-3-pyridylphenyl)-2-methylpyrimidine (B3PyMPM) was selected to construct a co-hosted system. The efficiency of im-OCzP combined with B3PyMPM forming co-hosts could also
一系列咪唑基-苯基咔唑基主体材料,即。例如,合成了 im-CzP、im-CzPCz、im-CzP t Bu和im-OCzP以获得高效的绿色和红色发光 PhOLED。选择电子传输材料 bis-4,6-(3,5-di-3-pyridylphenyl)-2-methylpyrimidine (B3PyMPM) 来构建共托管系统。im-OCzP与B3PyMPM结合形成共宿主的效率也可以达到 23.0(80.0 cd A -1和 98.8 lm W -1)和 16.5 %(10.2 cd A -1和 13.4 lm W -1)的高值分别为绿色和红色PhOLED。