The Kinetics of the Electrodeposition of Cadmium Telluride

Danaher W.J. and Lyons L.E. (1984) The Kinetics of the Electrodeposition of Cadmium Telluride. Australian Journal of Chemistry, 37 4: 689-701. doi:10.1071/CH9840689

Author Danaher W.J.
Lyons L.E.
Title The Kinetics of the Electrodeposition of Cadmium Telluride
Journal name Australian Journal of Chemistry   Check publisher's open access policy
ISSN 1445-0038
Publication date 1984
Sub-type Article (original research)
DOI 10.1071/CH9840689
Volume 37
Issue 4
Start page 689
End page 701
Total pages 13
Subject 1600 Chemistry
Abstract The kinetics of the electrodeposition of CdTe from an aqueous solution containing CdSO4, TeO2and H2SO4 were investigated by using a rotating ring-disc electrode. The results for tellurium deposition alone indicated that the reaction occurs through a six-electron reduction of HTeO2 +to H2Te, followed by a reaction between H2Te and HTeO2 + yielding tellurium. At HTeO2 +concentrations greater than 10-3 m, the second step of this process is very fast and the overall reaction behaves as a four-electron reduction of HTeO2 + to Te: only at lower HTeO2 + concentrations was evidence observed for the six-electron reduction. The electrodeposition of CdTe occurs through two possible pathways: Cd2+ ions can react with H2Te produced during the reduction of HTeO2 +and thus yield CdTe, or tellurium deposited on the electrode can react with Cd2+to yield CdTe. The two reactions compete with the deposition of pure tellurium. Conditions to deposit stoichiometric CdTe are suggested.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
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