Impact of texture-enhanced transmission on high-efficiency surface-textured light-emitting diodes
نویسندگان
چکیده
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. © 2001 American Institute of Physics. @DOI: 10.1063/1.1397758#
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