Monitoring of the MBE growth processes of CdTe on InSb by laser light scattering

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Main Author: J. Huerta
Format: Artículo científico
Language:en
Published: Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. 1999
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author J. Huerta
author_facet J. Huerta
contents Monitoring of the MBE growth processes of CdTe on InSb by laser light scattering J. Huerta M. López López O. Zelaya Angel Física, Astronomía y Matemáticas MBE SEM AFM CdTe InSb We have studied by Laser Light Scattering (LLS) the oxides surface desorption of InSb substrates, and the subsequentgrowth of CdTe layers by molecular beam epitaxy (MBE). LLS measurements allowed us to determine the criticaltemperature before surface degradation of InSb, which is not evidently noticed by reflection high energy electrondiffraction (RHEED). Surface defects appeared on substrates where this temperature was exceeded, as observed byscanning electron microscopy (SEM) and Atomic Force Microscopy (AFM). During the MBE of CdTe on InSb,two features were noticed in LLS measurements. First, a decrease in intensity was observed that can be associated to achange in surface roughness at the initial stages of growth. The second feature is an oscillatory behavior, which can berelated to interference. A geometrical model of interference in thin films was used to calculate the layer thickness in realtime 1999 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94200905 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.9
format Artículo científico
id redalyc_94200905
institution Redalyc
language en
publishDate 1999
publisher Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.
spellingShingle Monitoring of the MBE growth processes of CdTe on InSb by laser light scattering
J. Huerta
Física, Astronomía y Matemáticas
MBE
SEM
AFM
CdTe
InSb
Monitoring of the MBE growth processes of CdTe on InSb by laser light scattering J. Huerta M. López López O. Zelaya Angel Física, Astronomía y Matemáticas MBE SEM AFM CdTe InSb We have studied by Laser Light Scattering (LLS) the oxides surface desorption of InSb substrates, and the subsequentgrowth of CdTe layers by molecular beam epitaxy (MBE). LLS measurements allowed us to determine the criticaltemperature before surface degradation of InSb, which is not evidently noticed by reflection high energy electrondiffraction (RHEED). Surface defects appeared on substrates where this temperature was exceeded, as observed byscanning electron microscopy (SEM) and Atomic Force Microscopy (AFM). During the MBE of CdTe on InSb,two features were noticed in LLS measurements. First, a decrease in intensity was observed that can be associated to achange in surface roughness at the initial stages of growth. The second feature is an oscillatory behavior, which can berelated to interference. A geometrical model of interference in thin films was used to calculate the layer thickness in realtime 1999 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94200905 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.9
title Monitoring of the MBE growth processes of CdTe on InSb by laser light scattering
topic Física, Astronomía y Matemáticas
MBE
SEM
AFM
CdTe
InSb
url https://www.redalyc.org/articulo.oa?id=94200905