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

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 electroc...

Full description

Saved in:
Bibliographic Details
Published inInorganic chemistry Vol. 49; no. 4; pp. 1301 - 1303
Main Authors Ren, Xiaofan, Kondakova, Marina E, Giesen, David J, Rajeswaran, Manju, Madaras, Marcel, Lenhart, William C
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 15.02.2010
Subjects
Coumarins - chemistry
Electrons
Iodopyracet - chemistry
Iridium - chemistry
Light
Luminescent Measurements - methods
Molecular Structure
Photochemistry - methods
Spectrometry, Fluorescence
Thermodynamics
Online AccessGet full text

Cover

More Information
Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0020-1669
1520-510X
DOI:10.1021/ic9022097