Enhanced and balanced efficiency of white bidirectional organic light-emitting diodes

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We report on the characteristics of enhanced and balanced white-light emission from bi-directional organic light-emitting diodes (BiOLEDs) enabled by the introduction of micro-cavity effects. The insertion of an additional metal layer between the indium tin oxide anode and the hole transporting layer results in similar light output of our BiOLEDs in both top and bottom direction and in reduced distortion of the electroluminescence spectrum. Furthermore, we find that by utilizing MC effects, the overall current efficiency can be improved by 26.2% compared to that of a conventional device. (C) 2013 Optical Society of America
Publisher
OPTICAL SOC AMER
Issue Date
2013-11
Language
English
Article Type
Article
Keywords

CAPPING LAYERS; PERFORMANCE

Citation

OPTICS EXPRESS, v.21, no.23, pp.28040 - 28047

ISSN
1094-4087
DOI
10.1364/OE.21.028040
URI
http://hdl.handle.net/10203/191112
Appears in Collection
EE-Journal Papers(저널논문)
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