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Engineering Desired Grain Orientation and Boundaries Separating Adjacent Grains in Polycrystalline Thin Films

Published online by Cambridge University Press:  15 February 2011

I. A. Rauf  and
M. Sayer
I. A. Rauf
Affiliation:
Department of Physics, Queen's University, Kingston, Ontario, CANADA, K7L 3N6.
M. Sayer
Affiliation:
Department of Physics, Queen's University, Kingston, Ontario, CANADA, K7L 3N6.
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Abstract

A simple process, involving a controlled temperature gradient on the surface of the substrate during the deposition of a thin film is described. This technique is similar to zone-refining but produces chains of impurity free grains. Simultaneously, dopants and other defects are confined to the grain boundaries separating two such chains. For a small temperature gradient only preferred orientation is obtained within a chain. For medium values of temperature gradient the grain boundaries within a chain are engineered to be either on a low energy coincidence site lattice (CSL) or a twin depending on the magnitude of gradient. For high magnitudes of temperature gradient, the chain is predicted to be a single crystal strip.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 403: Symposium I – Polycrystalline Thin Films: Structure, Texture, Properties and Applications II , 1995 , 45
Copyright
Copyright © Materials Research Society 1996

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