共发射极
二苯基氧化膦
窄带
电致发光
共振(粒子物理)
光电子学
二苯基膦
氧化物
材料科学
化学
纳米技术
光学
物理
原子物理学
催化作用
图层(电子)
高分子化学
冶金
生物化学
磷化氢
作者
Nengquan Li,Yulin Xu,Shuni Wang,Jingsheng Miao,Nengquan Li,Zhongyan Huang,Chuluo Yang
摘要
A new narrowband thermally activated delayed fluorescence emitter, PhCzBN-PO, was developed by incorporating the diphenylphosphine oxide (DPPO) group into a multi-resonance core. The unique properties of DPPO enabled PhCzBN-PO to achieve pure green emission and a nonplanar structure. The resulting electroluminescent devices achieved high external quantum efficiencies up to 32.4% with extremely low efficiency roll-off and pure-green emission with Commission Internationale de L'Eclairage (CIE) coordinates of (0.24, 0.67).
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