Open Access

ARTICLE

Structural, optical and electrical properties of CuO thin films deposited by spray pyrolysis technique: influence annealing process

R. Daira^a,*, B. Boudjemaa^b, A. Mohammedi^c

a LRPCSI, University 20 Août 1955-Skikda, P.B. 26, Route d’El-Hadaiek, 21000, Skikda, Algeria
b Laboratory of Materials Physics and its Applications, University of M’sila, 28000 M’sila, Algeria
c Faculty of Sciences, University of M’sila, 28009 M’sila, Algeria

* Corresponding Author:

Chalcogenide Letters 2023, 20(4), 277-284. https://doi.org/10.15251/CL.2023.204.277

Received 31 January 2023; Accepted 09 April 2023;

Abstract

In this work, CuO thin films about the synthesis of the thin films are prepared on glass substrate using spray pyrolysis technique at room temperature different annealing times in temperature 450 0 C.In order to study the effect of annealing times onthe structural, optical and electrical properties.XRD analysis has shown that films with a polycrystalline structurehave a(Monoclinic) structure.In addition, the crystallite phase CuO increases with increasing of annealing temperature.Moreover, with a preferred orientation along (002) peak.The optical properties confirmed that the elaborated films have a transmittance of 70%. We have found that the band gap energy (Eg) is a decreasing function with respect to the annealing temperature time. In addition, the electrical resistivity varies from 18.97 to 4.58 KOhm.cm for the films grown at different annealing times.

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Keywords

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