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

dc.creatorSavu, Raluca
dc.creatorParra, Rodrigo
dc.creatorJancar, Bostjan
dc.creatorZaghete, María Aparecida
dc.creatorJoanni, Ednan
dc.date2011-01-10
dc.identifierhttp://hdl.handle.net/11336/9643
dc.identifierSavu, 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
dc.identifier1530-437X
dc.descriptionZinc 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.
dc.descriptionFil: Savu, Raluca. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
dc.descriptionFil: 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
dc.descriptionFil: Jancar, Bostjan. Jozef Stefan Institute; Eslovenia
dc.descriptionFil: Zaghete, María Aparecida. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
dc.descriptionFil: Joanni, Ednan. Centro de Tecnologia da Informação Renato Archer; Brasil
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherInstitute Of Electrical And Electronics Engineers
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://ieeexplore.ieee.org/document/5685249/
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1109/JSEN.2011.2105261
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subjectZno
dc.subjectUv Photodetectors
dc.subjectHydrothermal Synthesis
dc.subjectNanorods
dc.subjectCooling Rate
dc.subjectZinc Oxide
dc.subjecthttps://purl.org/becyt/ford/2.5
dc.subjecthttps://purl.org/becyt/ford/2
dc.subjecthttps://purl.org/becyt/ford/1.4
dc.subjecthttps://purl.org/becyt/ford/1
dc.titleInfluence of hydrothermal synthesis conditions and device configuration on the photoresponse of UV sensors based on ZnO nanorods
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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