Molecular Dynamics Study of Hypothetical Silicon Nanotubes Using the Tersoff Potential
Authors: Kang, Jeong Won; Seo, Jae Jeong; Hwang, Ho Jung
Source: Journal of Nanoscience and Nanotechnology, Volume 2, Number 6, December 2002 , pp. 687-691(5)
Publisher: American Scientific Publishers
Abstract:We have performed classical molecular dynamics simulations for hypothetical silicon nanotubes using the Tersoff potential. Our investigation presented a systematic study about the thermal behavior of hypothetical silicon nanotubes and showed the difficulty in producing silicon nanotubes or graphitelike sheets. However, since the elastic energy per atom to curve the sheet into cylinders for silicon atoms is as low as that for carbon atoms, if graphitelike sheets of silicon are formed, the extra cost to produce the tubes is of a similar order to that in carbon. Through the investigations on the structure and properties of a double-wall silicon nanotube, we concluded that quasi-one-dimensional structures consisting of silicon atoms become nanowires rather than nanotubes in order to minimize the number of sp2 bonds.
Document Type: Research article
Publication date: 2002-12-01
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