Synthesis and Characterization of MgO Thin Films Obtained by Spray Technique for Optoelectronic Applications

Magnesium oxide (MgO) thin films with different magnesium concentrations ([Mg<sup>2+</sup>] = 0.05, 0.1, 0.15 and 0.2 mol·L<sup>−1</sup>) in a spray solution have been successfully grown using a spray pyrolysis technique. X-ray diffraction (XRD), Maud software, FTIR spectrosc...

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Autores principales:	Maher Tlili, Chayma Nefzi, Badriyah Alhalaili, Chaker Bouzidi, Lassaad Ajili, Neila Jebbari, Ruxandra Vidu, Najoua Turki Kamoun
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	magnesium oxide (MgO) thin film physical properties antireflective photocatalysis application Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/877aa4bddb924d0aa5f81bb8b8d6e591
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spelling	oai:doaj.org-article:877aa4bddb924d0aa5f81bb8b8d6e5912021-11-25T18:32:15ZSynthesis and Characterization of MgO Thin Films Obtained by Spray Technique for Optoelectronic Applications10.3390/nano111130762079-4991https://doaj.org/article/877aa4bddb924d0aa5f81bb8b8d6e5912021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/3076https://doaj.org/toc/2079-4991Magnesium oxide (MgO) thin films with different magnesium concentrations ([Mg<sup>2+</sup>] = 0.05, 0.1, 0.15 and 0.2 mol·L<sup>−1</sup>) in a spray solution have been successfully grown using a spray pyrolysis technique. X-ray diffraction (XRD), Maud software, FTIR spectroscopy, a confocal microscope, Wien2k software, spectrophotometry and a Photoluminescence spectrometer were used to investigate the structural, morphological and optical properties. XRD analysis revealed a better crystalline quality of the MgO thin layer synthesized with [Mg<sup>2+</sup>] = 0.15 mol·L<sup>−1</sup>, which crystallized into a face-centered cubic structure along the preferred orientation (200) lattice plan. The enhancement of the crystalline quality for the MgO thin film ([Mg<sup>2+</sup>] = 0.15 mol·L<sup>−1</sup>) was obtained, which was accompanied by an increment of 94.3 nm of the crystallite size. No secondary phase was detected and the purity phase of the MgO thin film was confirmed using Maud software. From the transmission spectra results, high transparent and antireflective properties of the MgO thin film were observed, with an average transmission value of about 91.48% in the visible range, which can be used as an optical window or buffer layer in solar cell applications. The films also have a high reflectance value in the IR range, which indicates that the highly reflective surface will prevent an increase in surface temperature under solar irradiation, which could be beneficial in solar cell applications. A direct band gap type was estimated using the Tauc relation which is close to the experimental value of 4.0 eV for optimal growth. The MgO material was tested for the degradation of methylene blue (MB), which reached a high photodegradation rate of about 83% after 180 min under sunlight illumination. These experimental trends open a new door for promising the removal of water contaminants for photocatalysis application.Maher TliliChayma NefziBadriyah AlhalailiChaker BouzidiLassaad AjiliNeila JebbariRuxandra ViduNajoua Turki KamounMDPI AGarticlemagnesium oxide (MgO) thin filmphysical propertiesantireflectivephotocatalysis applicationChemistryQD1-999ENNanomaterials, Vol 11, Iss 3076, p 3076 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	magnesium oxide (MgO) thin film physical properties antireflective photocatalysis application Chemistry QD1-999
spellingShingle	magnesium oxide (MgO) thin film physical properties antireflective photocatalysis application Chemistry QD1-999 Maher Tlili Chayma Nefzi Badriyah Alhalaili Chaker Bouzidi Lassaad Ajili Neila Jebbari Ruxandra Vidu Najoua Turki Kamoun Synthesis and Characterization of MgO Thin Films Obtained by Spray Technique for Optoelectronic Applications
description	Magnesium oxide (MgO) thin films with different magnesium concentrations ([Mg<sup>2+</sup>] = 0.05, 0.1, 0.15 and 0.2 mol·L<sup>−1</sup>) in a spray solution have been successfully grown using a spray pyrolysis technique. X-ray diffraction (XRD), Maud software, FTIR spectroscopy, a confocal microscope, Wien2k software, spectrophotometry and a Photoluminescence spectrometer were used to investigate the structural, morphological and optical properties. XRD analysis revealed a better crystalline quality of the MgO thin layer synthesized with [Mg<sup>2+</sup>] = 0.15 mol·L<sup>−1</sup>, which crystallized into a face-centered cubic structure along the preferred orientation (200) lattice plan. The enhancement of the crystalline quality for the MgO thin film ([Mg<sup>2+</sup>] = 0.15 mol·L<sup>−1</sup>) was obtained, which was accompanied by an increment of 94.3 nm of the crystallite size. No secondary phase was detected and the purity phase of the MgO thin film was confirmed using Maud software. From the transmission spectra results, high transparent and antireflective properties of the MgO thin film were observed, with an average transmission value of about 91.48% in the visible range, which can be used as an optical window or buffer layer in solar cell applications. The films also have a high reflectance value in the IR range, which indicates that the highly reflective surface will prevent an increase in surface temperature under solar irradiation, which could be beneficial in solar cell applications. A direct band gap type was estimated using the Tauc relation which is close to the experimental value of 4.0 eV for optimal growth. The MgO material was tested for the degradation of methylene blue (MB), which reached a high photodegradation rate of about 83% after 180 min under sunlight illumination. These experimental trends open a new door for promising the removal of water contaminants for photocatalysis application.
format	article
author	Maher Tlili Chayma Nefzi Badriyah Alhalaili Chaker Bouzidi Lassaad Ajili Neila Jebbari Ruxandra Vidu Najoua Turki Kamoun
author_facet	Maher Tlili Chayma Nefzi Badriyah Alhalaili Chaker Bouzidi Lassaad Ajili Neila Jebbari Ruxandra Vidu Najoua Turki Kamoun
author_sort	Maher Tlili
title	Synthesis and Characterization of MgO Thin Films Obtained by Spray Technique for Optoelectronic Applications
title_short	Synthesis and Characterization of MgO Thin Films Obtained by Spray Technique for Optoelectronic Applications
title_full	Synthesis and Characterization of MgO Thin Films Obtained by Spray Technique for Optoelectronic Applications
title_fullStr	Synthesis and Characterization of MgO Thin Films Obtained by Spray Technique for Optoelectronic Applications
title_full_unstemmed	Synthesis and Characterization of MgO Thin Films Obtained by Spray Technique for Optoelectronic Applications
title_sort	synthesis and characterization of mgo thin films obtained by spray technique for optoelectronic applications
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/877aa4bddb924d0aa5f81bb8b8d6e591
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Synthesis and Characterization of MgO Thin Films Obtained by Spray Technique for Optoelectronic Applications

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