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http://dx.doi.org/10.4313/JKEM.2011.24.12.1002

Improvement of Extraction Efficiency of OLED by Nanosphere Lithography  

Han, Gwang-Min (Center for Functional Nano Fine Chemicals, Chonnam National University)
Yeo, Jong-Bin (Center for Functional Nano Fine Chemicals, Chonnam National University)
Lee, Hyun-Yong (Faculty of Applied Chemical Engineering, Chonnam National University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.24, no.12, 2011 , pp. 1002-1009 More about this Journal
Abstract
The light extraction efficiency of top-emitting organic light-emitting diode (OLED) was improved by insertion of corrugation patterns between indium tin oxide and organic layers. The corrugation patterns was fabricated by nanosphere lithography, which could form a self-assembled particle monolayer over a large area. The electrical and optical properties for the OLED devices fabricated by vacuum evaporation, were investigated. We have demonstrated the enhancement of the power efficiency of corrugated OLED. As a result, the power efficiency of the corrugated OLED was found to be more than 42%.
Keywords
OLED; Nanosphere lithography; Power efficiency;
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