21 February 2011 Transport equation model for the optics of light-emitting diodes with arbitrary surface microstructure
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Abstract
We present a transport equation model for the light emission and transport in light-emitting diodes. Using the model, we compare the brightness and quantum efficiency of LEDs with light extraction through a smooth, light scattering or perfectly transparent planar surface. We show that surface roughened LEDs can perform almost ideally and that the thickness of the active region in LEDs has a large effect on the photon extraction and the overall efficiency.
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Oskari Heikkilä, Oskari Heikkilä, Jani Oksanen, Jani Oksanen, Jukka Tulkki, Jukka Tulkki, } "Transport equation model for the optics of light-emitting diodes with arbitrary surface microstructure", Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 793315 (21 February 2011); doi: 10.1117/12.873551; https://doi.org/10.1117/12.873551
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