An effective host material with thermally activated delayed fluorescence formed by confined conjugation for red phosphorescent organic light-emitting diodes

作者：Liu, Xiang-Yang; Liang, Feng; Yuan, Yi; Cui, Lin-Song; Jiang, Zuo-Quan^*; Liao, Liang-Sheng^*

来源：Chemical communications, 2016, 52(52): 8149-8151.

DOI：10.1039/c6cc02856j

• EXTERNAL QUANTUM EFFICIENCY
• TRIPLET EXCHANGE ENERGY
• SMALL MOLECULES
• ROLL-OFF
• DEVICES
• OLEDS
• DERIVATIVES
• CARBAZOLE
• STRATEGY
• EMITTERS

A thermally activated delayed fluorescence material 2,6-bis(9,9-diphenylacridin-10(9H)-yl)pyrazine was designed and synthesized. The twisted configuration made it possesses very small singlet-triplet splitting. A red electroluminescent device based on this new host material is able to achieve similar to 26% external quantum efficiency and relatively flat efficiency roll-off.

• 出版日期2016
• 单位苏州大学