Novel Ir(ppy)3 Derivatives: Simple Structure Modification Toward Nearly 30% External Quantum Efficiency in Phosphorescent Organic Light‐Emitting Diodes. Issue 6 (9th March 2016)

• Record Type: Journal Article
• Authors: Liu, Di; Deng, Lijun; Li, Wei; Yao, Ruijuan; Li, Deli; Wang, Miao; Zhang, Shufen
• Is Part Of: Advanced optical materials. Volume 4:Issue 6(2016:Jun.)
• Page Start: 864
• Page End: 870
• Publication Date: 2016-03-09
• Subjects: external quantum efficiency -- fluorination -- Ir(ppy)3 -- iridium complexes -- phosphorescent OLEDs; Optical materials -- Periodicals; Photonics -- Periodicals; 620.11295
• DOI: 10.1002/adom.201600020
• Languages: English
• ISSNs: 2195-1071

Abstract

Abstract : 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.