Spray-pyrolysed tin doped zinc oxide thin films-analysis based on microstructural, optical and morphological characterizations

Tin (Sn) doped Zinc oxide (ZnO) thin films are prepared via spray pyrolysis technique at varying doping concentrations. X-Ray diffraction (XRD) studies confirm the hexagonal wurtzite phase of the prepared samples. The crystallite size of the samples lies between 40 and 60 nm. The Field Emission Scan...

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Main Authors: V.K. Devanarayanan, S. Deepa, J. Jassi, Arshad Salim
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Results in Surfaces and Interfaces
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666845925002119
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author V.K. Devanarayanan
S. Deepa
J. Jassi
Arshad Salim
author_facet V.K. Devanarayanan
S. Deepa
J. Jassi
Arshad Salim
author_sort V.K. Devanarayanan
collection DOAJ
description Tin (Sn) doped Zinc oxide (ZnO) thin films are prepared via spray pyrolysis technique at varying doping concentrations. X-Ray diffraction (XRD) studies confirm the hexagonal wurtzite phase of the prepared samples. The crystallite size of the samples lies between 40 and 60 nm. The Field Emission Scanning Electron Microscope (FESEM) is used to investigate the morphological aspects. UV–Visible Absorbance spectra reveal a variation of band gap from 3.21 to 3.28 eV. The sub-stoichiometric phase and oxygen vacancies in the samples have been examined using Raman spectra and verified by photoluminescence spectra. The results confirm that a moderate level of Sn doping enhances the CO2 sensing performance of ZnO thin films.
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institution Kabale University
issn 2666-8459
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publishDate 2025-08-01
publisher Elsevier
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series Results in Surfaces and Interfaces
spelling doaj-art-81c7a2a680e646b49e0ab39047cc0f032025-08-20T05:08:00ZengElsevierResults in Surfaces and Interfaces2666-84592025-08-012010062410.1016/j.rsurfi.2025.100624Spray-pyrolysed tin doped zinc oxide thin films-analysis based on microstructural, optical and morphological characterizationsV.K. Devanarayanan0S. Deepa1J. Jassi2Arshad Salim3PG and Research Department of Physics, Mar Athanasius College (Autonomous), Kothamangalam, India; Indiragandhi College of Arts and Science, Kothamangalam, India; Corresponding author. PG and Research Department of Physics, Mar Athanasius College (Autonomous), Kothamangalam, IndiaPG and Research Department of Physics, Mar Athanasius College (Autonomous), Kothamangalam, India; Corresponding author.PG and Research Department of Physics, Mar Athanasius College (Autonomous), Kothamangalam, IndiaPG and Research Department of Physics, Mar Athanasius College (Autonomous), Kothamangalam, India; Indiragandhi College of Arts and Science, Kothamangalam, IndiaTin (Sn) doped Zinc oxide (ZnO) thin films are prepared via spray pyrolysis technique at varying doping concentrations. X-Ray diffraction (XRD) studies confirm the hexagonal wurtzite phase of the prepared samples. The crystallite size of the samples lies between 40 and 60 nm. The Field Emission Scanning Electron Microscope (FESEM) is used to investigate the morphological aspects. UV–Visible Absorbance spectra reveal a variation of band gap from 3.21 to 3.28 eV. The sub-stoichiometric phase and oxygen vacancies in the samples have been examined using Raman spectra and verified by photoluminescence spectra. The results confirm that a moderate level of Sn doping enhances the CO2 sensing performance of ZnO thin films.http://www.sciencedirect.com/science/article/pii/S2666845925002119Zinc oxideTinDopingSpray pyrolysisOxygen vacancies
spellingShingle V.K. Devanarayanan
S. Deepa
J. Jassi
Arshad Salim
Spray-pyrolysed tin doped zinc oxide thin films-analysis based on microstructural, optical and morphological characterizations
Results in Surfaces and Interfaces
Zinc oxide
Tin
Doping
Spray pyrolysis
Oxygen vacancies
title Spray-pyrolysed tin doped zinc oxide thin films-analysis based on microstructural, optical and morphological characterizations
title_full Spray-pyrolysed tin doped zinc oxide thin films-analysis based on microstructural, optical and morphological characterizations
title_fullStr Spray-pyrolysed tin doped zinc oxide thin films-analysis based on microstructural, optical and morphological characterizations
title_full_unstemmed Spray-pyrolysed tin doped zinc oxide thin films-analysis based on microstructural, optical and morphological characterizations
title_short Spray-pyrolysed tin doped zinc oxide thin films-analysis based on microstructural, optical and morphological characterizations
title_sort spray pyrolysed tin doped zinc oxide thin films analysis based on microstructural optical and morphological characterizations
topic Zinc oxide
Tin
Doping
Spray pyrolysis
Oxygen vacancies
url http://www.sciencedirect.com/science/article/pii/S2666845925002119
work_keys_str_mv AT vkdevanarayanan spraypyrolysedtindopedzincoxidethinfilmsanalysisbasedonmicrostructuralopticalandmorphologicalcharacterizations
AT sdeepa spraypyrolysedtindopedzincoxidethinfilmsanalysisbasedonmicrostructuralopticalandmorphologicalcharacterizations
AT jjassi spraypyrolysedtindopedzincoxidethinfilmsanalysisbasedonmicrostructuralopticalandmorphologicalcharacterizations
AT arshadsalim spraypyrolysedtindopedzincoxidethinfilmsanalysisbasedonmicrostructuralopticalandmorphologicalcharacterizations