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Proceedings Paper

Simulation of high performance quantum well GaN-based LED
Author(s): Z. Hassan; N. Zainal; M. R. Hashim; H. Abu Hassan
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Paper Abstract

The performance of quantum well GaN/AlGaN light emitting diode (LED) is reviewed for three different barrier compositions; symmetric barrier composition with low Al content, asymmetric barrier composition with higher Al content on p-type cladding layer and lower Al content on n-type cladding layer, and symmetric barrier composition with higher Al content. The study was conducted using ATLAS/BLAZE & LUMINOUS software developed by Silvaco International Inc. Integrated radiative recombination rate was studied on applied voltages up to 5V. Results showed three phases of LED performance with different applied voltages and these were explained using bandgap theory. I-V characteristic for each design agrees with the total additional voltage drop equation for a quantum well structure. The dominant radiative recombination rate regions in LED at low and high supplied voltages are also presented for the best performance LED design.

Paper Details

Date Published: 28 April 2005
PDF: 10 pages
Proc. SPIE 5722, Physics and Simulation of Optoelectronic Devices XIII, (28 April 2005); doi: 10.1117/12.598720
Show Author Affiliations
Z. Hassan, Univ. Sains Malaysia (Malaysia)
Univ. of Minnesota/Twin Cities (United States)
N. Zainal, Univ. Sains Malaysia (Malaysia)
M. R. Hashim, Univ. Sains Malaysia (Malaysia)
H. Abu Hassan, Univ. Sains Malaysia (Malaysia)

Published in SPIE Proceedings Vol. 5722:
Physics and Simulation of Optoelectronic Devices XIII
Marek Osinski; Fritz Henneberger; Hiroshi Amano, Editor(s)

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