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Preparation and study of sulphide thin films deposited by the dip technique

Authors
Journal
Thin Solid Films
0040-6090
Publisher
Elsevier
Publication Date
Volume
155
Issue
2
Identifiers
DOI: 10.1016/0040-6090(87)90075-7

Abstract

Abstract Cadmium, zinc and Cd-Zn mixed sulphide films were prepared by the dip technique. In this method, the substrate is withdrawn from a methanol solution of the relevant nitrate(s) and thiourea and baked at a high temperature to form the film. The maximum film thickness obtainable per dipping (deposition cycle) is about 5000 Å. CdS films show a zinc blende structure, whereas ZnS films are completely amorphous. Cd-Zn mixed sulphide films consist of an aggregate of amorphous zinc sulphide and partially crystalline CdS phases. The grain size, typically 1 μm, is found to increase with number of dippings.

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