Wuhan Tianma Micro-electronics Co., Ltd

Yuyang Guo

Lei Zhang

Wei Gao

Wenpeng Dai

Xia Li

Quan Ran

Lu Zhai

The present disclosure provides a compound having a structure represented by Formula 1, where X-Xare each independently selected from a carbon atom or a nitrogen atom, and at least two of X-Xare each a nitrogen atom; R-Rare independently absent or selected from hydrogen, C1-C20 alkyl, C1-C20 alkoxy, C1-C20 alkylthio, C1-C20 alkylamino, C6-C30 aryl, or C2-C30 heteroaryl; m is 1 or 2; n and q are each independently selected from 0, 1, or 2, n+q≥1, and m+n+q=3; Ar is C6-C30 aryl. The molecular structure of the compound has a nitrogen-containing multidentate ligand suitable to form complexes with metal Yb or LiQ to form a metal organic complex having multidentate bondings. When applied to an OLED device, it can effectively lower the turn-on voltage and operating voltage, improve the efficiency, and prolong lifetime of the OLED device.

Growing community of inventors

Shanghai, China

Yuyang Guo