dc.creatorComedi, David Mario
dc.creatorTirado, Monica Cecilia
dc.creatorZapata, María Cecilia
dc.creatorPérez, Silvia Inés
dc.creatorVillafuerte, Manuel Jose
dc.creatorMohseni, P. K.
dc.creatorLaPierre, R. R.
dc.date.accessioned2019-04-03T19:46:39Z
dc.date.accessioned2022-10-15T07:08:03Z
dc.date.available2019-04-03T19:46:39Z
dc.date.available2022-10-15T07:08:03Z
dc.date.created2019-04-03T19:46:39Z
dc.date.issued2010-04
dc.identifierComedi, David Mario; Tirado, Monica Cecilia; Zapata, María Cecilia; Pérez, Silvia Inés; Villafuerte, Manuel Jose; et al.; Randomly oriented ZnO nanowires grown on amorphous SiO2 by metal-catalyzed vapour deposition; Elsevier Science Sa; Journal of Alloys and Compounds; 495; 2; 4-2010; 439-442
dc.identifier0925-8388
dc.identifierhttp://hdl.handle.net/11336/73103
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4358718
dc.description.abstractRandomly oriented ZnO nanowire (NW) networks have been grown on thermal SiO2 substrates by the simple carbothermal reaction-assisted thermal evaporation of ZnO. One-dimensional growth was achieved with the aid of Au nanocluster catalysts dispersed on the substrates. The structures were studied by scanning electron microscopy, energy dispersive X-ray analysis, and X-ray absorption spectroscopy. The NW diameters and lengths were found to strongly depend on the substrate temperature (TS) and to be in the 5-10 nm and 40-110 nm ranges for TS = 520 °C, and in the 50-80 nm and 1-3 μm ranges for TS = 700 °C, respectively. The growth regime was characterized by comparing the NW structures obtained on SiO2 with those grown in the same deposition run on (1 0 0) Si substrates also covered with the Au catalyst. The NW structure prepared at 700 °C behaves as a dense NW network with net electrical conductance and persistent photoconductance. These results suggest a method to deposit size-controlled ZnO NW networks on insulating cost-effective substrates with important potential applications as in chemical sensors and solar cells.
dc.languageeng
dc.publisherElsevier Science Sa
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0925838809020465
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.jallcom.2009.10.070
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectNANOWIRE NETWORKS
dc.subjectNANOWIRES
dc.subjectVAPOUR-TRANSPORT
dc.subjectZNO
dc.titleRandomly oriented ZnO nanowires grown on amorphous SiO2 by metal-catalyzed vapour deposition
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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