The Substrate Effect on the Optical, Surface, and Electrical Properties of WO3: ZnO Nanocomposite Thin Films Deposited by Thermionic Vacuum Arc. (5th October 2021)

• Record Type: Journal Article
• Authors: Pat, Suat; Foumani, Iman Roknidoust
• Is Part Of: ECS journal of solid state science and technology. Volume 10:Number 10(2021)
• Publication Date: 2021-10-05
• Subjects: Solid state chemistry -- Periodicals; Electronics -- Materials -- Periodicals; Electrochemistry -- Periodicals; 541.0421
• DOI: 10.1149/2162-8777/ac2986
• Languages: English
• ISSNs: 2162-8777

Abstract

Abstract : Zinc oxide (ZnO), which has inimitable properties, is broadly used in technology. Here, ZnO was doped with tungsten trioxide (WO3 ) and deposited onto glass and silicon using a thermionic vacuum arc (TVA) method. TVA is a physical depositionmethod that does not necessitate a buffer gas and relies on plasma technology. The structural and morphological effects of WO3 on ZnO were investigated using atomic force microscopy and field emission scanning electron microscopy. Important data, such as Skewness, Kurtosis, root-mean-square (nm), grain size, and lack of cracking on the surface was obtained, which reveals significant information about the surface. The thickness of the deposited layers on glass and silicon was 20 and 60 nm, respectively. The optical properties of the thin film, such as absorption, transmittance, reflection, and refractive index transparency on the glass, were also investigated by applying an optical interferometer and UV–Vis spectrophotometer. The optical bandgap for the deposited sample was 3.02 eV. The presence of tungsten trioxide in the sample increases the range of absorbance. Our findings show that WO3 is a promising material to obtain low band gap energy for ZnO.