Windisch, R., Dutta, B., Kuijk, M., Knobloch, A., Meinlschmidt, S., Schobert, S., Kiesel, P., Borghs, G., Dohler, G., & Heremans, P. (2000). 40% efficient thin-film surface-textured light-emitting diodes by optimization of natural lithography. IEEE Transactions on Electron Devices, 47(7), 1492-1498.

@article{23e42fd7a2de4ae3ac6208ba32e97017,
title = "40% efficient thin-film surface-textured light-emitting diodes by optimization of natural lithography",
abstract = "In conventional light-emitting diodes (LED's), the external efficiency is limited by total internal reflection at the semiconductor-air interface. The problem can be overcome by the concept of the nonresonant cavity LED, which is an LED with a textured top surface and a rear reflector. The surface is textured using natural lithography, A monolayer of randomly positioned polystyrene spheres acts as a mask for dry etching. We present details about the optimization of the parameters of the texturing process for GaAs/AlGaAs LED's, The studied parameters are the size of the spheres, the distribution of the spheres on the surface and the etching depth. Using optimized texturing conditions, we have realized un-encapsulated top-emitting oxide-confined GaAs/AlGaAs nonresonant cavity LED's with an external quantum efficiency of 40%",
keywords = "light-emitting diodes, optical scattering, rough surfaces",
author = "Reiner Windisch and Barun Dutta and Maarten Kuijk and A. Knobloch and S. Meinlschmidt and S. Schobert and P. Kiesel and Gustaaf Borghs and Godfried Dohler and P. Heremans",
note = "IEEE Transactions on Electron Devices, , Vol. 47, pp. 1492-1498.",
year = "2000",
month = jul,
day = "1",
language = "English",
volume = "47",
pages = "1492--1498",
journal = "IEEE Transactions on Electron Devices",
issn = "0018-9383",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "7",
}