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Título : Influence of substrate conductivity on layer thickness in LPE GaAs
Palabras clave : A1. Growth models
Liquid phase epitaxy
Fecha de publicación : 26-nov-2012
Resumen : Differences have been foundon the growth rate of epitaxial layers grown simultaneously on semi-insulating andP andN type (1 0 0) GaAs substrates from the same Ga–As liquidsolution. The layers were grown by LPE at 786 C using an initial supercooling of 15 C anda cooling rate of 0.5 C/min. The thickness of the grown layers was measured, under an optical microscope, in cleavedcross-sections etchedin a FeCl3–HCl solution. To fit the thickness-growth time data to the theoretical expression used for diffusion-limited growth it is necessary to use different initial supercoolings for the layers grown in each substrate, in spite that those layers were grown at the same time, from the same solution and therefore under exactly the same conditions. r 2004 Elsevier B.V. All rights reserved.
Descripción : Article
URI : http://www.repositoriodigital.ipn.mx/handle/123456789/8561
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