Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings.

A new series of phosphorescent iridium (III) complexes based on 5-methyl-2-phenylbenzo[d]oxazole derivatives as main ligands, i.e. bis(5-methyl-2- phenylbenzo[d]oxazole-N,C2′) iridium(acetylacetonate) [(mpbo)2Ir(acac)], bis(2-(4-fluorophenyl)-5- methylbenzo[d]oxazole-N,C2′)iridium(acetylacetonate) [(fmbo)2Ir(acac)] and bis(5-methyl-2-p-tolylbenzo[d]oxazole-N,C 2′) iridium(acetylacetonate) [(mtbo)2Ir(acac)], were synthesized for organic light-emitting diodes (OLEDs), and their photophysical, electroluminescent properties were investigated. All complexes have high thermal stability and emit intense phosphorescence from green to yellow at room temperature with high quantum efficiencies and relatively short lifetimes. The OLED based on (fmbo)2Ir(acac) as dopant emitter showed very high luminance of 26,004 cd m-2 and luminance efficiency of 18.5 cd A -1. The evidences indicated that this series of iridium (III) complexes were potential candidates for applications in organic electroluminescent devices. © 2013 Elsevier B.V. All rights reserved.

Original publication

DOI

10.1016/j.optmat.2013.09.006

Type

Journal article

Journal

Optical Materials

Publication Date

01/01/2013

Volume

36

Pages

265 - 270