Efficiency improvement of phosphorescent organic light-emitting diodes using semitransparent Ag as anode

16 January 2006

journal article
research article
Published by AIP Publishing in Applied Physics Letters

Vol. 88 (3) , 033509
https://doi.org/10.1063/1.2164901

Abstract

The emission efficiency in an organic light-emitting diode (OLED) based on fac tris(phenyl pyridine)iridium [Ir(ppy)3] is greatly improved using a semitransparent Ag anode. With surface modification of the Ag anode, excellent light coupling and hole injection properties can be realized. The Ag-based OLED exhibits a maximum current efficiency of 81cd∕A and a power efficiency of 79lm∕W, compared with 46cd∕A and 39lm∕W for an indium-tin oxide anode device, respectively.

Keywords

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