Influence of the spray pyrolysis seeding and growth parameters on the structure and optical properties of ZnO nanorod arrays

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ZnO nanorods (NRs) were grown on fluorine doped tin oxide (FTO) substrates at low temperatures (90 °C) from Zn2+ precursors in alkaline media previously seeded with ZnO nanoparticles. These were deposited onto the FTO substrate heated at 350 °C by spray pyrolysis of a Zn acetate solution in a water...

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Autores principales: Rodríguez, Juan, Feuillet, Guy, Donatini, Fabrice, Onna, Diego Ariel, Sanchez, Luis, Candal, Roberto Jorge, Marchi, María Claudia, Aldabe, Sara Alfonsina, Chandezon, Frédéric
Formato: publishedVersion Artículo
Lenguaje:Inglés
Publicado: Elsevier Science BV 2015
Materias:
CHEMICAL SYNTHESIS
NANOSTRUCTURES
OPTICAL PROPERTIES
SEMICONDUCTORS
THIN FILMS
CIENCIAS QUÍMICAS
CIENCIAS NATURALES Y EXACTAS
Acceso en línea:https://ri.unsam.edu.ar/handle/123456789/1002
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Repositorio Institucional de la UNSAM de Universidad Nacional de General San Martín
id I78-R216-123456789-1002
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spelling I78-R216-123456789-10022023-03-27T20:22:17Z Influence of the spray pyrolysis seeding and growth parameters on the structure and optical properties of ZnO nanorod arrays Rodríguez, Juan Feuillet, Guy Donatini, Fabrice Onna, Diego Ariel Sanchez, Luis Candal, Roberto Jorge Marchi, María Claudia Aldabe, Sara Alfonsina Chandezon, Frédéric CHEMICAL SYNTHESIS NANOSTRUCTURES OPTICAL PROPERTIES SEMICONDUCTORS THIN FILMS CIENCIAS QUÍMICAS CIENCIAS NATURALES Y EXACTAS info:eu-repo/semantics/publishedVersion ZnO nanorods (NRs) were grown on fluorine doped tin oxide (FTO) substrates at low temperatures (90 °C) from Zn2+ precursors in alkaline media previously seeded with ZnO nanoparticles. These were deposited onto the FTO substrate heated at 350 °C by spray pyrolysis of a Zn acetate solution in a water ethanol mixture. The structure of seeds was tuned by the ethanol to water ratio, Γ, which controls the solvent evaporation rate of drops impinging the substrate. From a detailed characterization using a combination of scanning electron microscopy, X-ray diffraction, UV-visible absorption and cathodoluminescence spectroscopies, the dependence of the morphology and optical properties of the ZnO NRs on the seeding conditions was demonstrated. NRs grown on seeds deposited from solutions with Γ in the 0.03-0.06 range - i.e. when the surface excess of ethanol in the water-ethanol mixture has a maximum - show thinner average diameters and stacking faults due to the presence of zinc blende domains embedded into an overall wurtzite NR. They furthermore exhibit blue-shifted near band edge emission peak and a high deep level emission in cathodoluminescence. All these findings support the use of spray pyrolysis as a simple and reproducible way to control the seeds deposition, influencing the growth, the structure and the optical properties of the final ZnO NRs. Fil: Rodríguez, Juan. Universidad Nacional de Ingeniería; Perú Fil: Feuillet, Guy. CEA Grenoble; Francia Fil: Donatini, Fabrice. Université Grenoble Alpes; Francia. Centre National de la Recherche Scientifique. Institut Néel; Francia Fil: Onna, Diego Ariel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina Fil: Sanchez, Luis. Universidad Nacional de Ingeniería; Perú Fil: Candal, Roberto Jorge. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina Fil: Marchi, María Claudia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Microscopías Avanzadas; Argentina Fil: Aldabe, Sara Alfonsina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina Fil: Chandezon, Frédéric. Université Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia 2015-02 info:eu-repo/semantics/article info:ar-repo/semantics/artículo Rodríguez, J. et al. (feb 2015) Influence of the spray pyrolysis seeding and growth parameters on the structure and optical properties of ZnO nanorod arrays. En: Materials Chemistry and Physics. Elsevier Science BV. 151, 378-384. 0254-0584 MatChemPhys_2015_151_378-384 https://ri.unsam.edu.ar/handle/123456789/1002 eng info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Creative Commons Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5) application/pdf pp. 378-384 application/pdf Elsevier Science BV Materials Chemistry and Physics. 2015 151: 378-384 Elsevier B.V. https://doi.org/10.1016/j.matchemphys.2014.12.013
institution Universidad Nacional de General San Martín
institution_str I-78
repository_str R-216
collection Repositorio Institucional de la UNSAM
language Inglés
topic CHEMICAL SYNTHESIS
NANOSTRUCTURES
OPTICAL PROPERTIES
SEMICONDUCTORS
THIN FILMS
CIENCIAS QUÍMICAS
CIENCIAS NATURALES Y EXACTAS
spellingShingle CHEMICAL SYNTHESIS
NANOSTRUCTURES
OPTICAL PROPERTIES
SEMICONDUCTORS
THIN FILMS
CIENCIAS QUÍMICAS
CIENCIAS NATURALES Y EXACTAS
Rodríguez, Juan
Feuillet, Guy
Donatini, Fabrice
Onna, Diego Ariel
Sanchez, Luis
Candal, Roberto Jorge
Marchi, María Claudia
Aldabe, Sara Alfonsina
Chandezon, Frédéric
Influence of the spray pyrolysis seeding and growth parameters on the structure and optical properties of ZnO nanorod arrays
topic_facet CHEMICAL SYNTHESIS
NANOSTRUCTURES
OPTICAL PROPERTIES
SEMICONDUCTORS
THIN FILMS
CIENCIAS QUÍMICAS
CIENCIAS NATURALES Y EXACTAS
description ZnO nanorods (NRs) were grown on fluorine doped tin oxide (FTO) substrates at low temperatures (90 °C) from Zn2+ precursors in alkaline media previously seeded with ZnO nanoparticles. These were deposited onto the FTO substrate heated at 350 °C by spray pyrolysis of a Zn acetate solution in a water ethanol mixture. The structure of seeds was tuned by the ethanol to water ratio, Γ, which controls the solvent evaporation rate of drops impinging the substrate. From a detailed characterization using a combination of scanning electron microscopy, X-ray diffraction, UV-visible absorption and cathodoluminescence spectroscopies, the dependence of the morphology and optical properties of the ZnO NRs on the seeding conditions was demonstrated. NRs grown on seeds deposited from solutions with Γ in the 0.03-0.06 range - i.e. when the surface excess of ethanol in the water-ethanol mixture has a maximum - show thinner average diameters and stacking faults due to the presence of zinc blende domains embedded into an overall wurtzite NR. They furthermore exhibit blue-shifted near band edge emission peak and a high deep level emission in cathodoluminescence. All these findings support the use of spray pyrolysis as a simple and reproducible way to control the seeds deposition, influencing the growth, the structure and the optical properties of the final ZnO NRs.
format publishedVersion
Artículo
Artículo
author Rodríguez, Juan
Feuillet, Guy
Donatini, Fabrice
Onna, Diego Ariel
Sanchez, Luis
Candal, Roberto Jorge
Marchi, María Claudia
Aldabe, Sara Alfonsina
Chandezon, Frédéric
author_facet Rodríguez, Juan
Feuillet, Guy
Donatini, Fabrice
Onna, Diego Ariel
Sanchez, Luis
Candal, Roberto Jorge
Marchi, María Claudia
Aldabe, Sara Alfonsina
Chandezon, Frédéric
author_sort Rodríguez, Juan
title Influence of the spray pyrolysis seeding and growth parameters on the structure and optical properties of ZnO nanorod arrays
title_short Influence of the spray pyrolysis seeding and growth parameters on the structure and optical properties of ZnO nanorod arrays
title_full Influence of the spray pyrolysis seeding and growth parameters on the structure and optical properties of ZnO nanorod arrays
title_fullStr Influence of the spray pyrolysis seeding and growth parameters on the structure and optical properties of ZnO nanorod arrays
title_full_unstemmed Influence of the spray pyrolysis seeding and growth parameters on the structure and optical properties of ZnO nanorod arrays
title_sort influence of the spray pyrolysis seeding and growth parameters on the structure and optical properties of zno nanorod arrays
publisher Elsevier Science BV
publishDate 2015
url https://ri.unsam.edu.ar/handle/123456789/1002
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