Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based technique

Autores
Berruet, Mariana; Pereyra, C. J.; Mhlongo, G. H.; Dhlamini, M. S.; Hillie, K. T.; Vazquez, Marcela Vivian; Marotti, R. E.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nanostructured zinc oxide thin films were spin coated on conductive glass substrates via a sol-gel based technique using zinc acetate dihydrate as precursor. The pH of the alkalis used as catalytic agents in the hydrolysis step is shown to have a strong effect on the structural and morphological properties of the deposited ZnO. The size of the particles was observed by Transmission Electron Microscopy (TEM), while Focused Ion Beam-Scanning Electron Microscopy (FIB-SEM) and Atomic Force Microscopy (AFM), were used to analyze the morphology of the films. X-ray iffraction (XRD) and Raman spectra provided evidence of crystal growth together with an increase in the crystalline degree of the hexagonal wurtzite structure after annealing. The bandgap energy was estimated by Tauc´s method and found to decrease after annealing, which is attributed to an increase in the crystallite size and to the presence of less defect sites. A good correlation between crystallite size and absorption edges was found. The photoluminescence spectra of as-deposited samples depend on the nature and pH values of catalytic agent used, and reveal the presence of a broad visible emission attributed to a variety of intrinsic defects.
Fil: Berruet, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina
Fil: Pereyra, C. J.. Universidad de la República; Uruguay
Fil: Mhlongo, G. H.. Universidad de la República; Uruguay
Fil: Dhlamini, M. S.. No especifíca;
Fil: Hillie, K. T.. University of the Free State; Sudáfrica
Fil: Vazquez, Marcela Vivian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina
Fil: Marotti, R. E.. Universidad de la República; Uruguay
Materia
NANOSTRUCTURED ZNO
Thin film
Sol–gel based growth
Optical property
Photoluminescence
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/2098
Acceder
id CONICETDig_f4416c6b24ece558d2c7b508f5813035
oai_identifier_str oai:ri.conicet.gov.ar:11336/2098
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based techniqueBerruet, MarianaPereyra, C. J.Mhlongo, G. H.Dhlamini, M. S.Hillie, K. T.Vazquez, Marcela VivianMarotti, R. E.NANOSTRUCTURED ZNOThin filmSol–gel based growthOptical propertyPhotoluminescencehttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2Nanostructured zinc oxide thin films were spin coated on conductive glass substrates via a sol-gel based technique using zinc acetate dihydrate as precursor. The pH of the alkalis used as catalytic agents in the hydrolysis step is shown to have a strong effect on the structural and morphological properties of the deposited ZnO. The size of the particles was observed by Transmission Electron Microscopy (TEM), while Focused Ion Beam-Scanning Electron Microscopy (FIB-SEM) and Atomic Force Microscopy (AFM), were used to analyze the morphology of the films. X-ray iffraction (XRD) and Raman spectra provided evidence of crystal growth together with an increase in the crystalline degree of the hexagonal wurtzite structure after annealing. The bandgap energy was estimated by Tauc´s method and found to decrease after annealing, which is attributed to an increase in the crystallite size and to the presence of less defect sites. A good correlation between crystallite size and absorption edges was found. The photoluminescence spectra of as-deposited samples depend on the nature and pH values of catalytic agent used, and reveal the presence of a broad visible emission attributed to a variety of intrinsic defects.Fil: Berruet, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); ArgentinaFil: Pereyra, C. J.. Universidad de la República; UruguayFil: Mhlongo, G. H.. Universidad de la República; UruguayFil: Dhlamini, M. S.. No especifíca;Fil: Hillie, K. T.. University of the Free State; SudáfricaFil: Vazquez, Marcela Vivian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); ArgentinaFil: Marotti, R. E.. Universidad de la República; UruguayElsevier Science2013-09-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/2098Berruet, Mariana; Pereyra, C. J.; Mhlongo, G. H.; Dhlamini, M. S.; Hillie, K. T.; et al.; Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based technique; Elsevier Science; Optical Materials; 35; 12; 12-9-2013; 2721-27270925-3467enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.optmat.2013.08.018info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:21:03Zoai:ri.conicet.gov.ar:11336/2098instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:21:03.966CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based technique
title Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based technique
spellingShingle Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based technique
Berruet, Mariana
NANOSTRUCTURED ZNO
Thin film
Sol–gel based growth
Optical property
Photoluminescence
title_short Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based technique
title_full Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based technique
title_fullStr Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based technique
title_full_unstemmed Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based technique
title_sort Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based technique
dc.creator.none.fl_str_mv Berruet, Mariana
Pereyra, C. J.
Mhlongo, G. H.
Dhlamini, M. S.
Hillie, K. T.
Vazquez, Marcela Vivian
Marotti, R. E.
author Berruet, Mariana
author_facet Berruet, Mariana
Pereyra, C. J.
Mhlongo, G. H.
Dhlamini, M. S.
Hillie, K. T.
Vazquez, Marcela Vivian
Marotti, R. E.
author_role author
author2 Pereyra, C. J.
Mhlongo, G. H.
Dhlamini, M. S.
Hillie, K. T.
Vazquez, Marcela Vivian
Marotti, R. E.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv NANOSTRUCTURED ZNO
Thin film
Sol–gel based growth
Optical property
Photoluminescence
topic NANOSTRUCTURED ZNO
Thin film
Sol–gel based growth
Optical property
Photoluminescence
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Nanostructured zinc oxide thin films were spin coated on conductive glass substrates via a sol-gel based technique using zinc acetate dihydrate as precursor. The pH of the alkalis used as catalytic agents in the hydrolysis step is shown to have a strong effect on the structural and morphological properties of the deposited ZnO. The size of the particles was observed by Transmission Electron Microscopy (TEM), while Focused Ion Beam-Scanning Electron Microscopy (FIB-SEM) and Atomic Force Microscopy (AFM), were used to analyze the morphology of the films. X-ray iffraction (XRD) and Raman spectra provided evidence of crystal growth together with an increase in the crystalline degree of the hexagonal wurtzite structure after annealing. The bandgap energy was estimated by Tauc´s method and found to decrease after annealing, which is attributed to an increase in the crystallite size and to the presence of less defect sites. A good correlation between crystallite size and absorption edges was found. The photoluminescence spectra of as-deposited samples depend on the nature and pH values of catalytic agent used, and reveal the presence of a broad visible emission attributed to a variety of intrinsic defects.
Fil: Berruet, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina
Fil: Pereyra, C. J.. Universidad de la República; Uruguay
Fil: Mhlongo, G. H.. Universidad de la República; Uruguay
Fil: Dhlamini, M. S.. No especifíca;
Fil: Hillie, K. T.. University of the Free State; Sudáfrica
Fil: Vazquez, Marcela Vivian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina
Fil: Marotti, R. E.. Universidad de la República; Uruguay
description Nanostructured zinc oxide thin films were spin coated on conductive glass substrates via a sol-gel based technique using zinc acetate dihydrate as precursor. The pH of the alkalis used as catalytic agents in the hydrolysis step is shown to have a strong effect on the structural and morphological properties of the deposited ZnO. The size of the particles was observed by Transmission Electron Microscopy (TEM), while Focused Ion Beam-Scanning Electron Microscopy (FIB-SEM) and Atomic Force Microscopy (AFM), were used to analyze the morphology of the films. X-ray iffraction (XRD) and Raman spectra provided evidence of crystal growth together with an increase in the crystalline degree of the hexagonal wurtzite structure after annealing. The bandgap energy was estimated by Tauc´s method and found to decrease after annealing, which is attributed to an increase in the crystallite size and to the presence of less defect sites. A good correlation between crystallite size and absorption edges was found. The photoluminescence spectra of as-deposited samples depend on the nature and pH values of catalytic agent used, and reveal the presence of a broad visible emission attributed to a variety of intrinsic defects.
publishDate 2013
dc.date.none.fl_str_mv 2013-09-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/2098
Berruet, Mariana; Pereyra, C. J.; Mhlongo, G. H.; Dhlamini, M. S.; Hillie, K. T.; et al.; Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based technique; Elsevier Science; Optical Materials; 35; 12; 12-9-2013; 2721-2727
0925-3467
url http://hdl.handle.net/11336/2098
identifier_str_mv Berruet, Mariana; Pereyra, C. J.; Mhlongo, G. H.; Dhlamini, M. S.; Hillie, K. T.; et al.; Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based technique; Elsevier Science; Optical Materials; 35; 12; 12-9-2013; 2721-2727
0925-3467
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.optmat.2013.08.018
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846782663149486080
score 12.982451

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