Journal
JOURNAL OF APPLIED PHYSICS
Volume 95, Issue 5, Pages 2889-2895Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1644038
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A set of experimental measurements of scattering films and organic light emitting devices (OLEDs) is presented. We measure the reflectance, transmission, and emission characteristics of scattering media and OLED devices separately, and use this data as input into a simple radiative transfer model to predict the effect of light scattering on OLED light output. We find quantitative agreement between the radiative transfer model predictions and experimental results. We find that the introduction of volumetric scattering mechanisms increases the output of OLEDs by as much as 40%, which corresponds to over 70% of the light within a typical glass substrate being coupled to air. (C) 2004 American Institute of Physics.
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