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Opt Express. 2008 May 26;16(11):8003-15.

Design of high-contrast OLEDs with microcavity effect.

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  • 1Institute for Microstructural Sciences, National Research Council of Canada, 1200 Montreal Road, Ottawa ON, K1A 0R6, Canada.


There is a large demand for Organic Light-Emitting Displays (OLEDs) with higher contrast, particularly for outdoor applications. We show that lowering the reflectance of OLEDs, which is required for increasing the contrast, can also lead to a reduction of their efficiency when a small microcavity effect is not maintained in their structure. We describe in details the design of high-contrast bottom-emitting OLEDs that have low reflectance but still maintain a small cavity effect for efficient emission.

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