Plasma control of morpho-dimensional selectivity of hematite nanostructures

Cvelbar, U., Levchenko, I., Filipič, G., Mozetič, M., & Ostrikov, K. (2012) Plasma control of morpho-dimensional selectivity of hematite nanostructures. Applied Physics Letters, 100(24), p. 243103.

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Abstract

Highly controllablefabrication of the nanowire, nanocone, and mixed nanowire/nanowall arrays of iron oxide (hematite, α-Fe2O3) nanostructures in a simple, environment-friendly process is achieved by exposing the metal foils to low-temperature oxygen plasmas. Very dense forests of thin (≈50 nm) and long (up to several μm) nanowires are grown on the electrically biased substrates, whereas the use of the electrically insulated substrate resulted in the formation of a mixed array of nanowires and nanowalls. The proposed mechanism of the nanostructure growth is supported by the numerical simulations demonstrating the key role of the plasma environment in the growth morphology selection.

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3 citations in Scopus
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2 citations in Web of Science®

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ID Code: 73643
Item Type: Journal Article
Refereed: Yes
DOI: 10.1063/1.4729053
ISSN: 0003-6951
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 09 Jul 2014 04:43
Last Modified: 10 Jul 2014 06:30

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