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Enhanced light extraction in organic light-emitting devices: Using conductive low-index layers and micropatterned indium tin oxide electrodes with optimal taper angle
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/content/aip/journal/apl/100/23/10.1063/1.4724306
2012-06-05
2014-09-02

Abstract

We present our study on organic light-emitting diodes(OLEDs) in which outcoupling is enhanced based on a bilayer electrode consisting of a conductive low-index layer and micro-patterned indiumtin oxide (ITO) layers. Optical simulation reveals that the taper angle of an ITO pattern is among the most critical parameters influencing the outcoupling efficiency in the proposed structure. A fabrication method based on a lift-off process is then employed to control the taper angle of the ITO pattern to be in the optimal range. OLEDs with the proposed electrodestructure exhibit 50%–70% enhancement in external quantum efficiency over reference devices.

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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Enhanced light extraction in organic light-emitting devices: Using conductive low-index layers and micropatterned indium tin oxide electrodes with optimal taper angle
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/23/10.1063/1.4724306
10.1063/1.4724306
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