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A cyclic voltammetric synthesis of ZnS thin films using triethanolamine as a complexing agent


Citation

Kassim, Anuar and Nagalingam, Saravanan and Tan, Wee Tee and Karim, Noraini and Haron, Md. Jelas and Ho, Soon Min (2009) A cyclic voltammetric synthesis of ZnS thin films using triethanolamine as a complexing agent. Analele Universitatii Bucuresti - Chimie, 18 (2). pp. 59-66. ISSN 1220-871X; ESSN: 1844-0401

Abstract / Synopsis

ZnS thin films have been synthesized by means of cyclic voltammetry technique. An aqueous solution of zinc chloride was used as Zn2+ source, sodium thiosulfate as S2- source and triethanolamine as complexing agent for depositing ZnS thin films. The influence of complexing agent on the formation and properties of zinc sulphide thin films was investigated. Structure and surface morphology of thin films were characterized by X-ray diffraction and atomic force microscopy, respectively. The band gap energy and type of optical transition were determined from optical absorbance data. The band gap energy varies from 1.7 to 2.5 eV for the films prepared at different amounts of triethanolamine. XRD data indicate that the thin film deposited in presence of triethanolamine is polycrystalline in nature with cubic phase. Increase in amount of triethanolamine (5 ml) in electrochemical bath leads film is homogeneous, well covered to the substrate and exhibits higher absorption characteristic. We can conclude that the amount of complexing agent could affect the structure, surface morphology and optical properties of deposits. The good quality of zinc sulphide thin film could be prepared in the presence of triethanolamine.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Publisher: Analele Universitatii din Bucuresti
Keywords: Cyclic voltammetry; Triethanolamine; Thin film; Zinc sulphide
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 29 May 2015 12:57
Last Modified: 30 Nov 2016 17:05
URI: http://psasir.upm.edu.my/id/eprint/12682
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