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Tailoring the shape of oxide complex nanostructures

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Méndez Martín, Bianchi and López, I. and Alonso Orts, Manuel and Sanz, A. and Nogales Díaz, Emilio and Hidalgo Alcalde, Pedro and Piqueras de Noriega, Javier (2017) Tailoring the shape of oxide complex nanostructures. In Nanotechnology VIII. Proceedings of SPIE (10248). Spie-Int Soc Optical Engineering. ISBN 978-1-5106-0997-6

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Official URL: http://dx.doi.org/10.1117/12.2264457




Abstract

The synthesis of complex nanostructures that combine materials and dimensionality, promises the ability to identify novel designs and architectures with enhanced properties that could be used in new devices. One of the building blocks in nanomaterials are nanowires, which offer several possibilities to get complex nanostructures. We present two kinds of morphologies based on oxide nanowires obtained by a thermal evaporation method. The common feature of both morphologies is a central oxide nanowire and, depending on the growth parameters, nanowires with either nanocrystallites or nano/microrods attached to the central wire are obtained. We have previously reported the fabrication of several single oxide nanowires and in particular, gallium oxide (ß-Ga₂O₃) and zinc germanate oxide (Zn₂GeO₄) nanowires. Here we report the shape evolution of these nanowires by the suitable modification of the growth parameters. The addition of tin oxide (SnO₂) to the precursors and variation of the thermal treatments duration result in the formation of the above-mentioned complex nanostructures. Structural and chemical characterizations were performed by electron microscopy techniques and Raman spectroscopy. The results shed light on the understanding of the driving mechanisms that lead to the formation of complex oxide nanostructures.


Item Type:Book Section
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© 2017 SPIE.
ISSN: 0277-786X
Conference on Nanotechnology (8.2017.Barcelona, España)
This work has been supported by MINECO (projects CSD 2009-2013, MAT 2012 - 31959, MAT 2015 – 65274 – R - FEDER). M. A-O acknowledges financial support from MEC (FPU contract).

Uncontrolled Keywords:Ga₂O₃; Nanowires; Luminescence; Growth
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:45323
Deposited On:02 Nov 2017 16:53
Last Modified:03 Nov 2017 08:43

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