Influence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorods

Autores
Savu, Raluca; Parra, Rodrigo; Jancar, Bostjan; Zaghete, María Aparecida; Joanni, Ednan
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Zinc oxide nanorods in the form of powder or nanostructured films were synthesized by the hydrothermal method using aqueous solutions. Once the synthesis time was completed, the reaction vessel was naturally cooled or submitted to a quenching process. X-ray diffraction, Scanning Electron Microscopy and Transmission Electron Microscopy techniques were employed to characterize the crystallinity, morphology and dimensions of the nanorods as well as their growth direction. Suspensions of powder material were spin-coated over oxidized silicon substrates in order to obtain nanostructured layers. Photodetectors based on in-situ grown and spin-coated films were prepared in order to evaluate the influences of cooling rate and device configuration on the UV sensing characteristics. Spincoated layers showed an excellent performance (current change by more than four orders of magnitude), better than nanorods grown directly on the substrate during the hydrothermal process. For both configurations, the sensitive layers built from quenched samples exhibited enhanced UV photoresponses when compared to the naturally cooled ones.
Fil: Savu, Raluca. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Parra, Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Jancar, Bostjan. Jozef Stefan Institute; Eslovenia
Fil: Zaghete, María Aparecida. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Joanni, Ednan. Centro de Tecnologia da Informação Renato Archer; Brasil
Materia
Zno
Uv Photodetectors
Hydrothermal Synthesis
Nanorods
Cooling Rate
Zinc Oxide
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/9643
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Influence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorodsSavu, RalucaParra, RodrigoJancar, BostjanZaghete, María AparecidaJoanni, EdnanZnoUv PhotodetectorsHydrothermal SynthesisNanorodsCooling RateZinc Oxidehttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Zinc oxide nanorods in the form of powder or nanostructured films were synthesized by the hydrothermal method using aqueous solutions. Once the synthesis time was completed, the reaction vessel was naturally cooled or submitted to a quenching process. X-ray diffraction, Scanning Electron Microscopy and Transmission Electron Microscopy techniques were employed to characterize the crystallinity, morphology and dimensions of the nanorods as well as their growth direction. Suspensions of powder material were spin-coated over oxidized silicon substrates in order to obtain nanostructured layers. Photodetectors based on in-situ grown and spin-coated films were prepared in order to evaluate the influences of cooling rate and device configuration on the UV sensing characteristics. Spincoated layers showed an excellent performance (current change by more than four orders of magnitude), better than nanorods grown directly on the substrate during the hydrothermal process. For both configurations, the sensitive layers built from quenched samples exhibited enhanced UV photoresponses when compared to the naturally cooled ones.Fil: Savu, Raluca. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Parra, Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Jancar, Bostjan. Jozef Stefan Institute; EsloveniaFil: Zaghete, María Aparecida. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Joanni, Ednan. Centro de Tecnologia da Informação Renato Archer; BrasilInstitute Of Electrical And Electronics Engineers2011-01-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/9643Savu, Raluca; Parra, Rodrigo; Jancar, Bostjan; Zaghete, María Aparecida; Joanni, Ednan; Influence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorods; Institute Of Electrical And Electronics Engineers; Ieee Sensors Journal; 11; 9; 10-1-2011; 1820-18251530-437Xenginfo:eu-repo/semantics/altIdentifier/url/http://ieeexplore.ieee.org/document/5685249/info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1109/JSEN.2011.2105261info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:01:26Zoai:ri.conicet.gov.ar:11336/9643instacron: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 11:01:26.812CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorods
title Influence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorods
spellingShingle Influence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorods
Savu, Raluca
Zno
Uv Photodetectors
Hydrothermal Synthesis
Nanorods
Cooling Rate
Zinc Oxide
title_short Influence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorods
title_full Influence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorods
title_fullStr Influence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorods
title_full_unstemmed Influence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorods
title_sort Influence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorods
dc.creator.none.fl_str_mv Savu, Raluca
Parra, Rodrigo
Jancar, Bostjan
Zaghete, María Aparecida
Joanni, Ednan
author Savu, Raluca
author_facet Savu, Raluca
Parra, Rodrigo
Jancar, Bostjan
Zaghete, María Aparecida
Joanni, Ednan
author_role author
author2 Parra, Rodrigo
Jancar, Bostjan
Zaghete, María Aparecida
Joanni, Ednan
author2_role author
author
author
author
dc.subject.none.fl_str_mv Zno
Uv Photodetectors
Hydrothermal Synthesis
Nanorods
Cooling Rate
Zinc Oxide
topic Zno
Uv Photodetectors
Hydrothermal Synthesis
Nanorods
Cooling Rate
Zinc Oxide
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Zinc oxide nanorods in the form of powder or nanostructured films were synthesized by the hydrothermal method using aqueous solutions. Once the synthesis time was completed, the reaction vessel was naturally cooled or submitted to a quenching process. X-ray diffraction, Scanning Electron Microscopy and Transmission Electron Microscopy techniques were employed to characterize the crystallinity, morphology and dimensions of the nanorods as well as their growth direction. Suspensions of powder material were spin-coated over oxidized silicon substrates in order to obtain nanostructured layers. Photodetectors based on in-situ grown and spin-coated films were prepared in order to evaluate the influences of cooling rate and device configuration on the UV sensing characteristics. Spincoated layers showed an excellent performance (current change by more than four orders of magnitude), better than nanorods grown directly on the substrate during the hydrothermal process. For both configurations, the sensitive layers built from quenched samples exhibited enhanced UV photoresponses when compared to the naturally cooled ones.
Fil: Savu, Raluca. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Parra, Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Jancar, Bostjan. Jozef Stefan Institute; Eslovenia
Fil: Zaghete, María Aparecida. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Joanni, Ednan. Centro de Tecnologia da Informação Renato Archer; Brasil
description Zinc oxide nanorods in the form of powder or nanostructured films were synthesized by the hydrothermal method using aqueous solutions. Once the synthesis time was completed, the reaction vessel was naturally cooled or submitted to a quenching process. X-ray diffraction, Scanning Electron Microscopy and Transmission Electron Microscopy techniques were employed to characterize the crystallinity, morphology and dimensions of the nanorods as well as their growth direction. Suspensions of powder material were spin-coated over oxidized silicon substrates in order to obtain nanostructured layers. Photodetectors based on in-situ grown and spin-coated films were prepared in order to evaluate the influences of cooling rate and device configuration on the UV sensing characteristics. Spincoated layers showed an excellent performance (current change by more than four orders of magnitude), better than nanorods grown directly on the substrate during the hydrothermal process. For both configurations, the sensitive layers built from quenched samples exhibited enhanced UV photoresponses when compared to the naturally cooled ones.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-10
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/11336/9643
Savu, Raluca; Parra, Rodrigo; Jancar, Bostjan; Zaghete, María Aparecida; Joanni, Ednan; Influence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorods; Institute Of Electrical And Electronics Engineers; Ieee Sensors Journal; 11; 9; 10-1-2011; 1820-1825
1530-437X
url http://hdl.handle.net/11336/9643
identifier_str_mv Savu, Raluca; Parra, Rodrigo; Jancar, Bostjan; Zaghete, María Aparecida; Joanni, Ednan; Influence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorods; Institute Of Electrical And Electronics Engineers; Ieee Sensors Journal; 11; 9; 10-1-2011; 1820-1825
1530-437X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://ieeexplore.ieee.org/document/5685249/
info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1109/JSEN.2011.2105261
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Institute Of Electrical And Electronics Engineers
publisher.none.fl_str_mv Institute Of Electrical And Electronics Engineers
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
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score 12.928904

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