Effect of Deposition Temperature on the Properties of Copper-Zinc Sulphide Thin Films using Mixed Copper and Zinc Dithiocarbamate Precursors

Year 2022, Volume: 35 Issue: 4, 1556 - 1570, 01.12.2022

Joseph Emegha , Bolutife Olofinjana , Kingsley Ukhurebor , Uyiosa Aigbe , Samuel Azi , Marcus Eleruja

https://doi.org/10.35378/gujs.887025

Cited By: 2

Abstract

The influence of deposition temperatures on the structural, elemental, optical and electrical properties was investigated. The Rutherford backscattering (RBS) and scanning electron microscopy (SEM) were used to measure the elemental and morphological properties of the films. The RBS confirms that the stoichiometry was controlled by the deposition temperatures with a thickness that ranged between 51.00 to 63.00 nm. SEM data of the deposited films show different morphologies with several grains that increased with deposition temperature. Optical characterization shows that the films exhibited a direct transition with an energy gap that varies from 1.79 to 2.10 eV. For copper-zinc sulphides (CZS) film deposited at 470 ᴼC, the maximum electrical conductivity was 7.38 × 10-2 (Ω.cm)-1and minimum electrical resistivity was 1.35 × 101 (Ω.cm). The results confirm the possibility of using copper and zinc dithiocarbamate precursors in depositing high-quality CZS thin films with comparable properties.

Keywords

Deposition temperature, Electrical properties, Optical properties, Precursor, Thin-films

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