New blue phosphorescent heteroleptic Ir(<scp>iii</scp>) complexes with imidazole- and <i>N</i>-methylimidazole carboxylates as ancillary ligands
Hea Jung Park, Eun Ah Chae, Hye Won Seo, Jae‐Ho Jang, Won Jae Chung, Jun Yeob Lee, Do‐Hoon Hwang, Ung Chan Yoon
Abstract
The organic light-emitting diodes fabricated using <bold>Ir3</bold> and <bold>Ir4</bold> as dopant materials in the emissive layers were found to emit blue emission with peaks at 469 and 471 nm and maximum external quantum efficiencies of 20.0 and 22.4%, respectively.
Topics & Concepts
PhosphorescenceImidazoleDopantMaterials scienceBlue lightDiodeOLEDPhotochemistryOptoelectronicsDopingNanotechnologyChemistryStereochemistryOpticsFluorescencePhysicsLayer (electronics)Organic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsLanthanide and Transition Metal Complexes