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dc.contributor.author
Berruet, Mariana
dc.contributor.author
Pereyra, C.J.
dc.contributor.author
Mhlongo, G.H.
dc.contributor.author
Dhlamini, M.S.
dc.contributor.author
Hillie, K.T.
dc.contributor.author
Vazquez, Marcela Vivian
dc.contributor.author
Marotti, R.E.
dc.date.available
2015-09-24T19:21:24Z
dc.date.issued
2013-09-12
dc.identifier.citation
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
dc.identifier.issn
0925-3467
dc.identifier.uri
http://hdl.handle.net/11336/2098
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Nanostructured Zno
dc.subject
Thin Film
dc.subject
Sol-Gel Based Growth
dc.subject
Optical Property
dc.subject
Photoluminescence
dc.subject.classification
Recubrimientos y Películas
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.subject.classification
Nano-materiales
dc.subject.classification
Nanotecnología
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Optical and structural properties of nanostructured ZnO thin films deposited onto FTO/glass substrate by a solution-based technique
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
35
dc.journal.number
12
dc.journal.pagination
2721-2727
dc.journal.pais
Nld
dc.journal.ciudad
Amsterdam
dc.description.fil
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;
dc.description.fil
Fil: Pereyra, C.J.. Universidad de la República. Facultad de Ingenieria. Instituto de Física. Centro Interdisciplinario de Nanotecnología, Química y Física de Materiales; Uruguay;
dc.description.fil
Fil: Mhlongo, G.H.. Council for Scientific and Industrial Research. National Centre for Nano-Structured Materials; Sudafrica;
dc.description.fil
Fil: Dhlamini, M.S.. Council for Scientific and Industrial Research. National Centre for Nano-Structured Materials; Sudafrica; University of South Africa. Department of Physics; Sudafrica;
dc.description.fil
Fil: Hillie, K.T.. Council for Scientific and Industrial Research. National Centre for Nano-Structured Materials; Sudafrica; University of the Free State. Department of Physics; Sudafrica;
dc.description.fil
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;
dc.description.fil
Fil: Marotti, R.E.. Universidad de la Republica. Facultad de Ingenieria. Instituto de Fisica y CINQUIFIMA; Uruguay;
dc.journal.title
Optical Materials
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/journal/09253467/35/12
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.optmat.2013.08.018


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