报告题目：Host engineering for blue organic light-emitting diodes

报 告 人：Jun Yeob Lee教授, 成均馆大学

邀 请 人：赵祖金 教授

报告时间：2025年2月12日（周三）下午15:00开始

报告地点：北区科技园1号楼502会议室

报告摘要：

In this work, novel boron derivatives which can show good performances as the thermally activated delayed fluorescence emitters and hosts for blue phosphors are introduced for blue organic light-emitting diodes. The boron derivatives were designed to have high triplet energy through main skeleton possessing boron and oxygen bridged multi-resonance structure. It was demonstrated that the boron-oxygen bridged multi-resonance based materials show high external quantum efficiency as the blue emitters and as the hosts of blue phosphors. Both high efficiency and long device lifetime could be achieved using the new boron derivatives in the blue organic light-emitting diodes. The boron-oxygen bridged materials were effective to achieve high efficiency in the thermally activated delayed fluorescence organic light-emitting didoes and phosphorescent organic light-emitting diodes.

个人简介：

Professor Jun Yeob Lee is the SKKU Fellow, and the Member of Korea Academy of Science and Technology (KAST), and now working in School of Chemical Engineering in Sungkyunkwan University. His researches focus on thermally activated delayed fluorescent emitters, organic materials for blue phosphorescent organic light-emitting diodes, and pure organic phosphorescent organic light-emitting diodes.