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Impact of texture-enhanced transmission on high-efficiency surface-textured light-emitting diodes This publication appears in: Applied Physics Letters Authors: R. Windisch, C. Rooman, S. Meinlschmidt, D. Zipperer, G. Dohler, B. Dutta, M. Kuijk, G. Borghs and P. Heremans Volume: 79 Issue: 15 Pages: 2315-2317 Publication Date: Oct. 2001
Abstract: The transmission properties of semiconductor surfaces can be changed by surface texturing. We investigate these changes experimentally and find that an enhancement of the angle-averaged transmission by a factor of 2 can be achieved with optimum texturing parameters. This enhanced transmission provides an additional light extraction mechanism for high-efficiency surface-textured light-emitting diodes. External quantum efficiencies of 46% and 54% are demonstrated before and after encapsulation, respectively. (C) 2001 American Institute of Physics.
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