Novel Ir(ppy)3 Derivatives: Simple Structure Modification Toward Nearly 30% External Quantum Efficiency in Phosphorescent Organic Light-Emitting Diodes
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- 作者：Di Liu ; Lijun Deng ; Wei Li ; Ruijuan Yao ; Deli Li ; Miao Wang and Shufen Zhang
- 刊名：Advanced Optical Materials
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：4
- 期：6
- 页码：864-870
- 全文大小：364K
- ISSN：2195-1071
文摘
Novel tris-cyclometalated iridium phosphors with diphenylamino groups and multiple fluorine atoms incorporated on cyclometalating ligands are developed for use as doped emitters in organic light-emitting diodes (OLEDs). The green phosphorescent OLEDs based on heteroleptic iridium complexes exhibit an external quantum efficiency of 30% even using simple device structures, which is among the highest values ever reported for iridium phosphors.