期刊
JOURNAL OF APPLIED PHYSICS
卷 104, 期 7, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.2986915
关键词
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资金
- Australian Research Council, CSIRO
- International Research Network for Deterministic Plasma-Aided Nanofabrication. K.O
- Slovenian Research Agency
- Abroad Public Tender Scheme
A theoretical model to describe the plasma-assisted growth of carbon nanofibers (CNFs) is proposed. Using the model, the plasma-related effects on the nanofiber growth parameters, such as the growth rate due to surface and bulk diffusion, the effective carbon flux to the catalyst surface, the characteristic residence time and diffusion length of carbon atoms on the catalyst surface, and the surface coverages, have been studied. The dependence of these parameters on the catalyst surface temperature and ion and etching gas fluxes to the catalyst surface is quantified. The optimum conditions under which a low-temperature plasma environment can benefit the CNF growth are formulated. These results are in good agreement with the available experimental data on CNF growth and can be used for optimizing synthesis of related nanoassemblies in low-temperature plasma-assisted nanofabrication. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.2986915]
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