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Proceedings Paper

Influence of cavity effects on light extraction efficiency in organic light emitting devices
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Paper Abstract

In this paper, we demonstrate that the light extraction efficiency of an OLED is a strong function of the location of the recombination zone and the ratio of the extracted mode to the substrate guided mode varies from 22% to 55%. The large variation of the extraction efficiency in most OLEDs is the direct result of optical cavity effect present in the devices. In addition, we show that the light intensity profile varies from a Lambertian shape to a non-Lambertian shape depending of the device geometry.

Paper Details

Date Published: 12 November 2007
PDF: 6 pages
Proc. SPIE 6655, Organic Light Emitting Materials and Devices XI, 66551J (12 November 2007); doi: 10.1117/12.732556
Show Author Affiliations
Jaewon Lee, Univ. of Florida (United States)
Neetu Chopra, Univ. of Florida (United States)
Kaushik Roy Choudhury, Univ. of Florida (United States)
Franky So, Univ. of Florida (United States)

Published in SPIE Proceedings Vol. 6655:
Organic Light Emitting Materials and Devices XI
Zakya H. Kafafi; Franky So, Editor(s)

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