Synthesis and characterization of nanostructured cerium dioxide thin films deposited by ultrasonic spray pyrolysis

Nanostructured thin films of cerium dioxide have been prepared on single-crystalline silicon substrates by ultrasonic spray pyrolysis using cerium acetylacetonate as a metal–organic precursor dissolved in anhydrous methanol and acetic acid as an additive. The morphology, structure, optical index, an...

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Autores: Garcia-Sánchez, Mario F., Ortiz, Armando, Santana, Guillermo, Bizarro, Monserrat, Peña, Juan, Cruz-Gandarilla, Francisco, Aguilar-Frutis, Miguel A., Alonso, Juan C.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:México
Institución:Instituto Politécnico Nacional
Repositorio:Repositorio Digital del IPN
OAI Identifier:oai:www.repositoriodigital.ipn.mx:123456789/11025
Acceso en línea:http://hdl.handle.net/123456789/539
http://www.repositoriodigital.ipn.mx/handle/123456789/11025
Access Level:acceso abierto
Palabra clave:Cerium Dioxide
Spray Pyrolysis
Impedance Spectroscopy
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spelling Synthesis and characterization of nanostructured cerium dioxide thin films deposited by ultrasonic spray pyrolysisGarcia-Sánchez, Mario F.Ortiz, ArmandoSantana, GuillermoBizarro, MonserratPeña, JuanCruz-Gandarilla, FranciscoAguilar-Frutis, Miguel A.Alonso, Juan C.Cerium DioxideSpray PyrolysisImpedance SpectroscopyNanostructured thin films of cerium dioxide have been prepared on single-crystalline silicon substrates by ultrasonic spray pyrolysis using cerium acetylacetonate as a metal–organic precursor dissolved in anhydrous methanol and acetic acid as an additive. The morphology, structure, optical index, and electrical properties were studied by X-ray diffraction, scanning electron microscopy, atomic force microscopy, ellipsometry, and impedance spectroscopy. The use of additives is very important to obtain crack-free films. The substrate temperature and flow rate was optimized for obtaining smooth (Ra <0.4 nm), dense (n>2), and homogeneous nanocrystalline films with grain sizes as small as 10 nm. The influence of thermal annealing on the structural properties of films was studied. The low activation energy calculated for total conductivity (0.133 eV) is attributed to the nanometric size of the grains.InvestigaciónINSTITUTO POLITECNICO NACIONALWILEY2012-03-27T02:32:04Z2012-03-27T02:32:04Z2010-012013-01-16T11:57:09Z2013-01-16T11:57:09Z2013-01-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleJ. Am. Ceram. Soc., 93 [1] 155-1600002-7820http://hdl.handle.net/123456789/539http://www.repositoriodigital.ipn.mx/handle/123456789/11025reponame:Repositorio Digital del IPNinstname:Instituto Politécnico Nacionalinstacron:IPNeninfo:eu-repo/semantics/openAccessoai:www.repositoriodigital.ipn.mx:123456789/110252026-02-18T16:40:51Z
dc.title.none.fl_str_mv Synthesis and characterization of nanostructured cerium dioxide thin films deposited by ultrasonic spray pyrolysis
title Synthesis and characterization of nanostructured cerium dioxide thin films deposited by ultrasonic spray pyrolysis
spellingShingle Synthesis and characterization of nanostructured cerium dioxide thin films deposited by ultrasonic spray pyrolysis
Garcia-Sánchez, Mario F.
Cerium Dioxide
Spray Pyrolysis
Impedance Spectroscopy
title_short Synthesis and characterization of nanostructured cerium dioxide thin films deposited by ultrasonic spray pyrolysis
title_full Synthesis and characterization of nanostructured cerium dioxide thin films deposited by ultrasonic spray pyrolysis
title_fullStr Synthesis and characterization of nanostructured cerium dioxide thin films deposited by ultrasonic spray pyrolysis
title_full_unstemmed Synthesis and characterization of nanostructured cerium dioxide thin films deposited by ultrasonic spray pyrolysis
title_sort Synthesis and characterization of nanostructured cerium dioxide thin films deposited by ultrasonic spray pyrolysis
dc.creator.none.fl_str_mv Garcia-Sánchez, Mario F.
Ortiz, Armando
Santana, Guillermo
Bizarro, Monserrat
Peña, Juan
Cruz-Gandarilla, Francisco
Aguilar-Frutis, Miguel A.
Alonso, Juan C.
author Garcia-Sánchez, Mario F.
author_facet Garcia-Sánchez, Mario F.
Ortiz, Armando
Santana, Guillermo
Bizarro, Monserrat
Peña, Juan
Cruz-Gandarilla, Francisco
Aguilar-Frutis, Miguel A.
Alonso, Juan C.
author_role author
author2 Ortiz, Armando
Santana, Guillermo
Bizarro, Monserrat
Peña, Juan
Cruz-Gandarilla, Francisco
Aguilar-Frutis, Miguel A.
Alonso, Juan C.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Cerium Dioxide
Spray Pyrolysis
Impedance Spectroscopy
topic Cerium Dioxide
Spray Pyrolysis
Impedance Spectroscopy
description Nanostructured thin films of cerium dioxide have been prepared on single-crystalline silicon substrates by ultrasonic spray pyrolysis using cerium acetylacetonate as a metal–organic precursor dissolved in anhydrous methanol and acetic acid as an additive. The morphology, structure, optical index, and electrical properties were studied by X-ray diffraction, scanning electron microscopy, atomic force microscopy, ellipsometry, and impedance spectroscopy. The use of additives is very important to obtain crack-free films. The substrate temperature and flow rate was optimized for obtaining smooth (Ra <0.4 nm), dense (n>2), and homogeneous nanocrystalline films with grain sizes as small as 10 nm. The influence of thermal annealing on the structural properties of films was studied. The low activation energy calculated for total conductivity (0.133 eV) is attributed to the nanometric size of the grains.
publishDate 2010
dc.date.none.fl_str_mv 2010-01
2012-03-27T02:32:04Z
2012-03-27T02:32:04Z
2013-01-16T11:57:09Z
2013-01-16T11:57:09Z
2013-01-16
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv J. Am. Ceram. Soc., 93 [1] 155-160
0002-7820
http://hdl.handle.net/123456789/539
http://www.repositoriodigital.ipn.mx/handle/123456789/11025
identifier_str_mv J. Am. Ceram. Soc., 93 [1] 155-160
0002-7820
url http://hdl.handle.net/123456789/539
http://www.repositoriodigital.ipn.mx/handle/123456789/11025
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv WILEY
publisher.none.fl_str_mv WILEY
dc.source.none.fl_str_mv reponame:Repositorio Digital del IPN
instname:Instituto Politécnico Nacional
instacron:IPN
instname_str Instituto Politécnico Nacional
instacron_str IPN
institution IPN
reponame_str Repositorio Digital del IPN
collection Repositorio Digital del IPN
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.81155

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