Electroepitaxy of multicomponent systems: ternary and quarternary compounds
作者:
T. Bryskiewicz,
J. Lagowski,
H. C. Gatos,
期刊:
Journal of Applied Physics
(AIP Available online 1980)
卷期:
Volume 51,
issue 2
页码: 988-996
ISSN:0021-8979
年代: 1980
DOI:10.1063/1.327680
出版商: AIP
数据来源: AIP
摘要:
A theoretical model is presented which accounts for the electroepitaxial growth kinetics and composition of multicomponent compounds in terms of mass transport in the liquid and phase diagram relationships. The mass transport in the interface is dominated by electromigration in the absence of convection and by diffusion in the presence of convection. The composition of the solid is controlled by the Peltier effect at the growth interface and by the diffusion and mobility constants of the solute components and the growth velocity (current density). Thus, for a given solution composition, the composition of the solid can be varied by varying the current density. For a given current density the composition remains constant even in the case of relatively thick epitaxial layers. All aspects of the model were found to be in good agreement with the growth and composition characteristics of Gax−1AlxAs layers.
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