A quinoxaline-based charge-transfer compound for efficient deep-red organic light emitting diodes
A quinoxaline-based charge-transfer compound for efficient deep-red organic light emitting diodes
复制标题
用于高效深红色有机发光二极管的喹喔啉基电荷转移化合物
DOI：
10.1016/j.dyepig.2021.109305
复制
发表时间：
2021-04-09
影响因子：
4.5
通讯作者：
Zhao, Bo
中科院分区：
文献类型：
--
作者：
Liu, Wen;Liu, Zemei;Zhao, Bo
Deep-red (DR) emitting materials with narrow band gap have important applications in optoelectronic field. However, limited by energy gap rules, the development of DR emitting materials with high luminous efficiency face great challenges. Herein, we present a new Quinoxaline-based compound 6,7-bis(4-(diphenylamino)phenyl) quinoxaline-2,3-dicarbonitrile (o-QxDC-DTPA) with D-A-D structure for deep-red organic light emitting diodes. Such a material features distinctive DR emitting property with strong charge transfer character. Highly efficient devices were achieved based on o-QxDC-DTPA with different doped concentrations. The doped device exhibited excellent electroluminescence efficiency, with a maximum EQE of 5.21% and DR emission with the emission peak at 680 nm.
