Publication Date

1974

Document Type

Dissertation/Thesis

First Advisor

Wood, Charles

Degree Name

M.S. (Master of Science)

Legacy Department

Department of Physics

LCSH

Thin films; Antimony telluride

Abstract

Amorphous films of Sb₁₋ₓTeₓ, where 0.11 ≤ x ≤ 0.86, have been prepared by coevaporation. Crystallization temperatures occur near room-temperature for all compositions and appear to depend on film thickness. The optical and transport properties have been investigated as a function of temperature. Optical band gaps at room-temperature, E[sub g], ranged between 0.3 to 0.7 eV and decreased non-linearly with temperature. For the composition Sb2Te3, E[sub g] ~ 0.7 eV, in contrast to the semi-metallic character of the crystalline form. All compositions were p-type with the Fermi-level close to the middle of the gap. The results have been interpreted in terms of the chemical bonding.

Comments

Includes bibliographical references.||Includes illustrations.

Extent

vi, 23 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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