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摘要:
In order to research into the microscopic behavior of interface particles in nano diamond composite films, the adsorption and diffusion behavior of carbon and silicon particles on diamond (001) surface has been calculated through the first principle method. The configuration energy and adsorption energy of carbon and silicon particles at four high symmetric locations on the diamond (001) surface were calculated, and the diffusion activation energy was also obtained. It turned out that the stable configuration is along with the diamond (001) growth orientation. In addition, the diffusion activation energy of carbon particle and silicon particle are respectively 2.824 eV and 0.475 eV. The difference between two activation energies illustrated that silicon particle can significantly promote carbon particle's diffusion, in which the denser nano diamond composite film can be formed.
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来源 :
Journal of Synthetic Crystals
ISSN: 1000-985X
年份: 2014
期: 3
卷: 43
页码: 625-630,647
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