Growth and characterization of copper cadmium sulphide thin films

Abstract

Copper cadmium sulphide thin film was deposited onto glass (soda-lime) substrates using chemical bath deposition (CBD) technique at room temperature. Chemical, optical, structural, and microstructural features were examined via the Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), UV-Vis Spectroscopy, and High-resolution Transmission Electron Microscopy (HRTEM). FTIR revealed that the associated chemical bond was below the 900 cm-1 marks. The optical band-gap of 2.36 eV was estimated from the absorption analysis. X-ray diffraction measurements reveal that the deposited material is polycrystalline with hexagonal and cubic structures typical of the binary constituents of and thin films. The grain sizes were randomly distributed and ranged between 35 and 60 nm as indicated by the HRTEM.

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

“…This demonstrates that CZS is a suitable material for UV filter production, where high absorption of UV radiation is needed [27]. The optical band gap was estimated using the following relationship in Equation (4) [28,29]:…”

Synthesis and characterization of copper zinc iron sulphide (CZFS) thin films

“…According to the solid-band theory, the (direct) bandgap (E g ) for semiconductor materials is determined using the following expression [ 11 , 18 ]: …”

“…In this work, we investigate the effect of the deposition period on the properties of CZFS TFs using the chemical bath deposition (CBD) technique. The versatility of the CBD method has led to its choice as the major deposition method for the fabrication of TFs and coatings for various applications [ 11 , 12 ]. The interest in quaternary materials comes from the possibility of engineering the compound parameters with deposition.…”

Influence of Molar Concentrations on Chemical Bath Deposited Cadmium Sulphide Thin Films

“…In recent times, certain metal chalcogenide thin films particularly those belonging to the II-VI semiconductor group has garnered interest in various applications because of their unique physical and optoelectronic properties such as high transmittance, low electrical resistivity and tunable band gaps due to electron confinement (Salim et al, 2016;Emegha et al, 2021a). Among these semiconductor materials, binary cadmium sulphide (CdS) stands out to be the most commonly investigated material due to their wide direct band gaps.…”