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Deposition and characterization of thin alumina films grown by electron beam evaporation Open Access


Other title
electron beam deposition
thin alumina films
Type of item
Degree grantor
University of Alberta
Author or creator
Muhammed, Harun
Supervisor and department
Cadien, Kenneth (Chemical and Materials Engineering)
Examining committee member and department
Barlage, Douglas (Electrical and Computer Engineering)
Mitlin, David (Chemical and Materials Engineering)
Department of Chemical and Materials Engineering

Date accepted
Graduation date
Master of Science
Degree level
In thin film fabrication, growth of high quality thin films with reproducibile properties is one of the main challenges. In order to achieve this goal, the influnce of the deposition system control parameters on film properties must be studied. This can be a complex process since many parameters may need to be considered. In this thesis, the electron beam evaporation of thin aluminum oxide films was investigated. Films were deposited with and without oxygen supply in the chamber, and at various ebeam source settings. A Varialble Angle Spectroscopic Ellipsometry system was used to characterize the films. Refractive index, which depends on material density and stoichiometry, was used as the figure of merit. It was observed that refractive index increases with deposition rate. Refractive index also changes with oxygen pressure and upon exposure to air. Various models to explain this behaviour are proposed and discussed.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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