dc.creator | Comedi, David Mario | |
dc.creator | Tirado, Monica Cecilia | |
dc.creator | Zapata, María Cecilia | |
dc.creator | Pérez, Silvia Inés | |
dc.creator | Villafuerte, Manuel Jose | |
dc.creator | Mohseni, P. K. | |
dc.creator | LaPierre, R. R. | |
dc.date.accessioned | 2019-04-03T19:46:39Z | |
dc.date.accessioned | 2022-10-15T07:08:03Z | |
dc.date.available | 2019-04-03T19:46:39Z | |
dc.date.available | 2022-10-15T07:08:03Z | |
dc.date.created | 2019-04-03T19:46:39Z | |
dc.date.issued | 2010-04 | |
dc.identifier | Comedi, 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.identifier | 0925-8388 | |
dc.identifier | http://hdl.handle.net/11336/73103 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4358718 | |
dc.description.abstract | Randomly 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.language | eng | |
dc.publisher | Elsevier Science Sa | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0925838809020465 | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.jallcom.2009.10.070 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | NANOWIRE NETWORKS | |
dc.subject | NANOWIRES | |
dc.subject | VAPOUR-TRANSPORT | |
dc.subject | ZNO | |
dc.title | Randomly oriented ZnO nanowires grown on amorphous SiO2 by metal-catalyzed vapour deposition | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/publishedVersion | |