Structural and Optical Prperties of (ZnO/NiO) Thin Films Mixture

In this study, we prepared mixtures of nickel oxide (NiO) and zinc (ZnO) in different proportions as thin films on high-purity glass substrates, using pyrolysis spray technique. Where samples of mixtures were precipitated from two solutions of nickel nitrate (Ni(NO3)2 ·6H2O) and zinc acetate (C4 H6O...

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Bibliographic Details
Published in:East European Journal of Physics
Main Authors: Ali Amiar, Okba Belahssen, Mebrouk Ghougali, Mourad Mimouni, Ghani Rihia, Mohammed Sadok Mahboub, Yamina Benkrima
Format: Article
Language:English
Published: V.N. Karazin Kharkiv National University Publishing 2023-09-01
Subjects:
mixtures of nio and zno
thin films
pyrolysis spray technology
energy gap
optical properties
Online Access:https://periodicals.karazin.ua/eejp/article/view/21696
Description
Summary:In this study, we prepared mixtures of nickel oxide (NiO) and zinc (ZnO) in different proportions as thin films on high-purity glass substrates, using pyrolysis spray technique. Where samples of mixtures were precipitated from two solutions of nickel nitrate (Ni(NO3)2 ·6H2O) and zinc acetate (C4 H6O4 Zn·2H2O) mixed in different proportions. Then the optical and structural properties of the prepared samples were studied. The transmittance decreases with the increase in the percentage of nickel oxide, which means that increasing the zinc oxide improves the transmittance in all the studied spectral fields. Samples with higher zinc oxide (ZnO) have two energy gaps. Scanning electron microscopy (SEM) showed that the surface morphology of the films has a relatively homogeneous composition. Where it was observed that increasing the proportion of zinc oxide leads to the appearance of zinc oxide granules clearly.
ISSN:2312-4334
2312-4539

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