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Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.advisor | Caballero Briones, Felipe | - |
dc.contributor.advisor | Chalé Lara, Fabio Felipe | - |
dc.contributor.author | Baron Miranda, Javier Armando | - |
dc.contributor.author | San Juan Hernandez, Samuel | - |
dc.date.accessioned | 2015-10-21T15:46:33Z | - |
dc.date.available | 2015-10-21T15:46:33Z | - |
dc.date.issued | 2015-10-21 | - |
dc.identifier.other | 2015 | - |
dc.identifier.uri | http://www.repositoriodigital.ipn.mx/handle/123456789/21811 | - |
dc.description | Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. VIII International Conference on Surfaces, Materials and Vacuum September 21st – 25th, 2015 Puebla, Puebla | es |
dc.description.abstract | In this work, zinc oxide films with different amounts of aluminum in the precursor solution (0, 0.5, 1, 2, 5 and 10 % [Al/Zn]) were prepared by ultrasonic spray pyrolysis onto glass substrates using zinc acetate as zinc precursor and 450 oC of substrate temperature. The films were characterized by X-ray diffraction, optical transmittance, scanning electron microscopy and current sensing atomic force microscopy. X-ray diffraction indicates a mixture between pure ZnO and some (Zn,Al)O phase with no evidence of crystalline Al2O3. The transmittance maximum and band gap increases with the [Al/Zn} ratio. The morphology was studied by SEM evolves from hexagonal flakes to hexagonal micro columns that first appear included between the flakes and thereafter dominate in the images. AFM indicate a grain size reduction from ZnO to ZnOAl up to 1% [Al/Zn] in the precursor solution as well as an increment in the conductivity, followed by a grain size increase as a reduction in the conductivity. CAFM indicates that conduction changes from grain bulk conduction to conduction through the grain boundaries when [Al/Zn] increases from 0.5-1% to 2-10%. Undoped ZnO shows uneven conduction paths, possibly related with the uneven distribution of vacancies. Financed by SIP20151074 and SIP2015599 | es |
dc.language.iso | en | es |
dc.relation.ispartofseries | SEM-331; | - |
dc.title | Nanoelectrical characterization of ZnO:Al films prepared by spray pyrolysis | es |
Aparece en las colecciones: | Congresos |
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Fichero | Descripción | Tamaño | Formato | |
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Nanoelectrical characterization of ZnO Al films prepared by spray pyrolysis.pdf | 102.59 kB | Adobe PDF | Visualizar/Abrir |
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