Coumarin-Based, Electron-Trapping Iridium Complexes as Highly Efficient and Stable Phosphorescent Emitters for Organic Light-Emitting Diodes

被引：55

作者：

Ren, Xiaofan ^{[1
]}

Kondakova, Marina E. ^{[1
]}

Giesen, David J. ^{[1
]}

Rajeswaran, Manju ^{[1
]}

Madaras, Marcel ^{[1
]}

Lenhart, William C. ^{[1
]}

机构：

[1] Eastman Kodak Co, Res Labs, Rochester, NY 14650 USA

来源：

INORGANIC CHEMISTRY | 2010年 / 49卷 / 04期

关键词：

REDUCTION; DEVICES;

D O I：

10.1021/ic9022097

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new class of coumarin-based iridium tris-cyclometalated complexes has been developed. These complexes are highly emissive, with emission colors ranging from green to orange-red. Besides modification of ligand structures, color tuning was realized by incorporation of ligands with different electrochemical properties in a heteroleptic structure. The organic light-emitting diodes (OLEDs) using these compounds as emissive dopants are highly efficient and stable. Unlike other Ir(III) phosphorescent dopants, these coumarin-based Ir(III) dopants can effectively trap and transport electrons in the emissive layer.

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页码：1301 / 1303

页数：3

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