Reactive oxygen plasma-enabled synthesis of nanostructured CdO : tailoring nanostructures through plasma–surface interactions

Cvelbar, Uros, Ostrikov, Kostya, & Mozetic, Miran (2008) Reactive oxygen plasma-enabled synthesis of nanostructured CdO : tailoring nanostructures through plasma–surface interactions. Nanotechnology, 19(40).

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Plasma-assisted synthesis of nanostructures is one of the most precise and effective approaches used in nanodevice fabrication. Here we report on the innovative approach of synthesizing nanostructured cadmium oxide films on Cd substrates using a reactive oxygen plasma-based process. Under certain conditions, the surface morphology features arrays of crystalline CdO nano/micropyramids. These nanostructures grow via unconventional plasma-assisted oxidation of a cadmium foil exposed to inductively coupled plasmas with a narrow range of process parameters. The growth of the CdO pyramidal nanostructures takes place in the solid-liquid-solid phase, with the rates determined by the interaction of plasma-produced oxygen atoms and ions with the surface. It is shown that the size of the pyramidal structures can be effectively controlled by the fluxes of oxygen atoms and ions impinging on the cadmium surface. The unique role of the reactive plasma environment in the controlled synthesis of CdO nanopyramidal structures is discussed as well.

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60 citations in Web of Science®

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ID Code: 73955
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: semiconductors, surfaces, interfaces and thin films, plasma physics, condensed matter, nanoscale science
DOI: 10.1088/0957-4484/19/40/405605
ISSN: 1361-6528
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2008 Institute of Physics Publishing Ltd.
Deposited On: 15 Jul 2014 22:26
Last Modified: 16 Jul 2014 23:11

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