Planar micro- and nano-patterning of GaN light-emitting diodes : guidelines and limitations
Herrnsdorf, Johannes and Xie, Enyuan and Watson, Ian M. and Laurand, Nicolas and Dawson, Martin D. (2014) Planar micro- and nano-patterning of GaN light-emitting diodes : guidelines and limitations. Journal of Applied Physics, 115 (8). 084503. ISSN 0021-8979
|
Text (Herrnsdorf-etal-JAP2014-planar-micro-and-nano-patterning-of-GaN-LEDs)
Herrnsdorf_etal_JAP2014_planar_micro_and_nano_patterning_of_GaN_LEDs.pdf Accepted Author Manuscript Download (536kB)| Preview |
Abstract
The emission area of GaN light-emitting diodes can be patterned by etch-free current aperturing methods which exploit the thin and highly resistive nature of the p-doped layer in these devices. Here, the fundamental underlying electrical and optical aspects of high-resolution current aperturing are investigated theoretically. The most critical parameter for the possible resolution is the thickness d of the p-GaN layer, but the interplay of p-GaN resistivity and electrical junction characteristics is also important. A spatial resolution of 1.59d can in principle be achieved, corresponding to about 300 nm in typical epitaxial structures. Furthermore, the emission from such a small emitter will spread by about 600 nm while propagating through the p-GaN. Both values can be reduced by reducing d.
Creators(s): |
Herrnsdorf, Johannes ![]() ![]() ![]() ![]() ![]() | Item type: | Article |
---|---|
ID code: | 47400 |
Notes: | (c) American Institute of Physics |
Keywords: | electrical resistivity, light emitting diodes, current density, electric currents, GaN micro light emitting diodes, current transmition, Physics, Physics and Astronomy(all) |
Subjects: | Science > Physics |
Department: | University of Strathclyde > University of Strathclyde Faculty of Science > Physics > Institute of Photonics Technology and Innovation Centre > Photonics |
Depositing user: | Pure Administrator |
Date deposited: | 09 Apr 2014 10:39 |
Last modified: | 03 Mar 2021 01:19 |
Related URLs: | |
URI: | https://strathprints.strath.ac.uk/id/eprint/47400 |
Export data: |