Novel Emission Color-Tuning Strategies in Heteroleptic Phosphorescent Ir(III) and Pt(II) Complexes
Novel Emission Color-Tuning Strategies in Heteroleptic Phosphorescent Ir(III) and Pt(II) Complexes
复制标题
杂配磷光 Ir(III) 和 Pt(II) 配合物的新型发射颜色调节策略
DOI：
10.1002/tcr.201800183
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发表时间：
2019
期刊：
影响因子：
6.6
通讯作者：
Zhou Guijiang
中科院分区：
文献类型：
--
作者：
Feng Zhao;Sun Yuanhui;Yang Xiaolong;Zhou Guijiang
在整个可见光谱范围内，有机发光二极管（oled）中磷光发射器的颜色调整是实现柔性全彩显示和白色固态照明的先决条件。杂电性2‐苯基吡啶型（ppy‐型）Ir（III）和Pt（II）配合物由于其优异的电致发光性能而在电致发光（EL）领域得到了很好的应用。此外，这些异电性Ir（III）和Pt（II）配合物的光物理特性通常由环金属化ppy -型配体的性质决定。因此，无论是对不同的环金属化配体进行复杂的修饰还是合理的组合，都将为调整它们的发射颜色提供一个很好的平台。在这篇个人论文中，我们特别强调了我们对异感型Ir（III）和Pt（II）配合物的新调色策略的贡献。此外，通过我们新颖的调色策略，双极性特性或增强的电子注入/输运（EI/ET）特性可以提供高的电子注入/输运性能。
Color‐tuning for phosphorescent emitters in organic light‐emitting diodes (OLEDs) across the entire visible spectrum is prerequisite to fulfil flexible full‐color displays and white solid‐state lighting. Heteroleptic 2‐phenylpyridine‐type (ppy‐type) Ir(III) and Pt(II) complexes as phosphorescent emitters have been well exploited in the electroluminescence (EL) field due to their outstanding EL performance. Furthermore, the photophysical characters of these heteroleptic Ir(III) and Pt(II) complexes are generally dominated by the nature of cyclometalating ppy‐type ligands. Accordingly, either sophisticated modification or judicious combination of different cyclometalating ppy‐type ligands will provide a wonderful platform to tune their emission color. In this personal account, we put a special emphasis on our contributions to the novel color‐tuning strategies in these heteroleptic ppy‐type Ir(III) and Pt(II) complexes. In addition, afforded by our novel color‐tuning strategies, ambipolar character or enhanced electron injection/transport (EI/ET) features can be furnished to bring high EL performances.