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The role of seeding in the morphology and wettability of ZnO nanorods films on different substrates

Mostrar el registro sencillo del ítem Rodríguez-Rodríguez, Juan Onna, Diego Sánchez, Luis Marchi, María-Claudia Candal, Roberto Ponce-Álvarez, Silvia Bilmes, Sara A.
dc.contributor.other Ponce-Álvarez, Silvia 2013
dc.identifier.citation Rodríguez, J., Onna, D., Sánchez, L., Marchi, M. C., Candal, R., Ponce, S., y Bilmes, S. A. (2013). The role of seeding in the morphology and wettability of ZnO nanorods films on different substrates. Applied Surface Science, (279), 197-203. doi:10.1016/j.apsusc.2013.04.069
dc.identifier.issn 0169-4332
dc.description.abstract Spray pyrolysis (SP) and spray-gel (SG) techniques were used to deposit ZnO seeds on Fluor doped tin oxide glasses (FTO), heated at 350 ¿C or 130 ¿C, and PET heated at 90 ¿C. The effect of seeding on the morphology and wettability of ZnO nanorods (NRs) films grown by wet chemical methods was analyzed. The morphology and wettability of ZnO NRs films depend on the seeding process. SP seeds formed from zinc acetate dissolved in water ethanol mixtures yield vertically aligned ZnO NRs, whose diameters and dispersion size are determined by the ethanol/water ratio in the precursor solution. SG seeds formed from a methanol ZnO sol produce a ring patterned distribution on the FTO substrate. The drying of ZnO sol drops impinging on the substrate produces high density of seeds along a ring yielding textured films with NRs vertically oriented on the rings and multi-oriented outside them. This effect was not observed when ZnO NRs grown onto the ZnO/PET substrate, however rod diameter is related with the density of seeds. This way to control the density and diameter of NRs deposited onto a substrate modify the wettability and opens new possibilities for the design of tailored nanomaterials for photochemical applications. Both type of NRs films showed a strong luminescence emission in the UV and in the blue, associated with surface and intrinsic defects.
dc.description.uri Indexado en Scopus es
dc.description.uri Acceso restringido a la comunidad Ulima (Para acceder al texto completo si es Docente Ulima, anteponer ULIMA/ a su usuario)
dc.format application/pdf es
dc.language.iso eng
dc.publisher Elsevier BV
dc.rights info:eu-repo/semantics/restrictedAccess es
dc.source Repositorio Institucional Ulima es
dc.source Universidad de Lima es
dc.subject Óxido de Zinc
dc.subject Nanoestructuras
dc.subject Zinc oxide
dc.subject Nanoestructures
dc.subject.classification Ingenierías / Ingeniería química
dc.title The role of seeding in the morphology and wettability of ZnO nanorods films on different substrates es_ES
dc.type info:eu-repo/semantics/article es_PE
dc.type.other Artículo en Scopus es_PE
dc.identifier.journal Applied Surface Science es Países Bajos es
dc.identifier.eissn 1873-5584 es
dc.description.peer-review Revisión por pares

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