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Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/12610

Title: Optical spectra and stokes shift in nanometric quantum wells
???metadata.dc.creator???: Silva, Antonio A. P.
Meneses, Eliermes A.
Vasconcellos, Aurea R.
Luzzi, Roberto
Keywords: Heterostructures
Non-Conventional Statistical Mechanics
Stokes Shift
Mecânica estatística não convencional
Publisher: Scientific Research
Issue Date: Oct-2013
Citation: SILVA, A. A. P. et al. Optical spectra and stokes shift in nanometric quantum wells. Optics and Photonics Journal, [S. l.], v. 3, n. 6, p. 1-4, Oct. 2013.
Abstract: We consider semiconductor heterostructures in nanometric quantum wells, which as a consequence of the growth process display at the rugged interfaces fractal characteristics, and largely influence optical and transport properties of the carriers system. The photoluminescence and excited photoluminescence spectra in such fractal conditions are theoretically analyzed, obtaining good agreement with the experimental results. The Stokes shift and linewidth are strongly dependent on the nonequilibrium thermomechanical-statistical state of the system. The Stokes shift has its origin in the presence of a gain region in the absorption spectrum, only present when the carriers system is in a statistical degenerate state.
URI: http://repositorio.ufla.br/jspui/handle/1/12610
???metadata.dc.language???: en_US
Appears in Collections:DEX - Artigos publicados em periódicos

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