Catalyst-Free Growth of Tin Oxide One-Dimensional Nanostructures on Silicon Nitride Substrates

Abstract:

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We have obtained one-dimensional (1D) nanomaterials of tin oxide (SnO2) on silicon nitride (Si3N4)-coated Si substrates by carrying out the thermal evaporation of solid Sn powders and varying the substrate temperature in an Ar/O2 ambient gas. We analyzed the samples with scanning electron microscopy, X-ray diffraction, transmission electron microscopy and photoluminescence (PL). Reactions at a lower substrate temperature gave rise to thinner 1D structures. The obtained 1D nanomaterials were single crystalline with a tetragonal rutile structure. We proposed a vapor-solid process as the growth mechanism for SnO2 nanorods. The PL spectrum exhibited visible light emission.

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Periodical:

Edited by:

Dragan P. Uskoković, Slobodan K. Milonjić and Dejan I. Raković

Pages:

297-302

DOI:

10.4028/www.scientific.net/MSF.555.297

Citation:

S.H. Shim et al., "Catalyst-Free Growth of Tin Oxide One-Dimensional Nanostructures on Silicon Nitride Substrates", Materials Science Forum, Vol. 555, pp. 297-302, 2007

Online since:

September 2007

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$35.00

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