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dc.contributor.author
Villafuerte, Manuel Jose
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Ferreyra, J. M.
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Zapata, C.
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Barzola Quiquia, J.
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Iikawa, F.
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Esquinazi, P.
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Huleani, S. P.
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de Lima, M. M.
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Cantarero, A.
dc.date.available
2017-02-08T21:25:02Z
dc.date.issued
2014-04
dc.identifier.citation
Villafuerte, Manuel Jose; Ferreyra, J. M.; Zapata, C.; Barzola Quiquia, J.; Iikawa, F.; et al.; Defect spectroscopy of single ZnO microwires; American Institute Of Physics; Journal Of Applied Physics; 115; 13; 4-2014; 1-5; 133101
dc.identifier.issn
0021-8979
dc.identifier.uri
http://hdl.handle.net/11336/12760
dc.description.abstract
The point defects of single ZnO microwires grown by carbothermal reduction were studied by microphotoluminescence, photoresistance excitation spectra, and resistance as a function of the temperature. We found the deep level defect density profile along the microwire showing that the concentration of defects decreases from the base to the tip of the microwires and this effect correlates with a band gap narrowing. The results show a characteristic deep defect levels inside the gap at 0.88 eV from the top of the VB. The resistance as a function of the temperature shows defect levels next to the bottom of the CB at 110 meV and a mean defect concentration of 4 1018 cm3 . This combination of techniques allows us to study the band gap values and defects states inside the gap in single ZnO microwires and opens the possibility to be used as a defect spectroscopy method.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Institute Of Physics
dc.rights
info:eu-repo/semantics/openAccess
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Microwires
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Zno
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Defects
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Spectroscopy
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Física de los Materiales Condensados
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Defect spectroscopy of single ZnO microwires
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info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-02-03T14:04:46Z
dc.journal.volume
115
dc.journal.number
13
dc.journal.pagination
1-5; 133101
dc.journal.pais
Estados Unidos
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Maryland
dc.description.fil
Fil: Villafuerte, Manuel Jose. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Solido; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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Fil: Ferreyra, J. M.. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Solido; Argentina
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Fil: Zapata, C.. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Solido; Argentina
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Fil: Barzola Quiquia, J.. University of Leipzig; Alemania
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Fil: Iikawa, F.. Instituto de Física “Gleb Wataghin"; Brasil
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Fil: Esquinazi, P.. University of Leipzig; Alemania
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Fil: Huleani, S. P.. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Solido; Argentina
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Fil: de Lima, M. M.. Universidad de Valencia; España
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Fil: Cantarero, A.. Universidad de Valencia; España
dc.journal.title
Journal Of Applied Physics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1063/1.4869555
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://aip.scitation.org/doi/10.1063/1.4869555
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