Theoretical luminescence spectra in p-type superlattices based on InGaAsN
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
16/09/2013
16/09/2013
01/10/2012
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| Resumo |
In this work, we present a theoretical photoluminescence (PL) for p-doped GaAs/InGaAsN nanostructures arrays. We apply a self-consistent method in the framework of the effective mass theory. Solving a full 8 x 8 Kane's Hamiltonian, generalized to treat different materials in conjunction with the Poisson equation, we calculate the optical properties of these systems. The trends in the calculated PL spectra, due to many-body effects within the quasi-two-dimensional hole gas, are analyzed as a function of the acceptor doping concentration and the well width. Effects of temperature in the PL spectra are also investigated. This is the first attempt to show theoretical luminescence spectra for GaAs/InGaAsN nanostructures and can be used as a guide for the design of nanostructured devices such as optoelectronic devices, solar cells, and others. CNPq [564.739/2010-3/NanoSemiCon, 302.550/2011-9/PQ, 470.998/2010-5/Univ, 472.312/2009-0/PQ, 303578/2007-6/PQ, 577.219/2008-1/JP] CNPq CAPES CAPES FACEPE FACEPE [0553-1.05/10/APQ] FAPESP FAPESP Materials Science, Engineering and Commercialization Program of Texas State University Materials Science, Engineering and Commercialization Program of Texas State University |
| Identificador |
NANOSCALE RESEARCH LETTERS, NEW YORK, v. 7, n. 1, pp. 1-6, OCT 31, 2012 1931-7573 http://www.producao.usp.br/handle/BDPI/33370 10.1186/1556-276X-7-607 |
| Idioma(s) |
eng |
| Publicador |
SPRINGER NEW YORK |
| Relação |
NANOSCALE RESEARCH LETTERS |
| Direitos |
openAccess Copyright SPRINGER |
| Palavras-Chave | #DILUTE NITRIDE SEMICONDUCTOR #LUMINESCENCE #(K)OVER-RIGHT-ARROW CENTER DOT(P)OVER-RIGHT-ARROW METHOD #P-DOPED #NANOSTRUCTURES #MOLECULAR-BEAM EPITAXY #DOPING QUANTUM-WELLS #BAND-STRUCTURES #PHOTOLUMINESCENCE #HETEROSTRUCTURES #LOCALIZATION #HOLES #NANOSCIENCE & NANOTECHNOLOGY #MATERIALS SCIENCE, MULTIDISCIPLINARY #PHYSICS, APPLIED |
| Tipo |
article original article publishedVersion |
