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Simulation of Realistic Core-shell Silicon Nanowires

Published online by Cambridge University Press:  01 February 2011

Rana Biswas  and
Bicai Pan
Rana Biswas
Affiliation:
biswasr@iastate.edu, Iowa State University, Physics, ECpE, Microelectronics Res. Ctr. & Ames Lab, Pammel Drive, Ames, IA, 50014, United States, 515-294-6987, 515-294-0689
Bicai Pan
Affiliation:
biswasr@iastate.edu, Iowa State University, Physics, ECpE, Microelectronics Res. Ctr. & Ames Lab, Pammel Drive, Ames, IA, 50014, United States, 515-294-6987, 515-294-0689
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Abstract

We have developed an efficient scheme for simulating silicon nanowires with crystalline cores and amorphous sheaths, using molecular dynamics. By starting with a crystalline nanowire and performing high temperature anneal an amorphous outer sheath can be grown with controlled thickness on the nanowire. Simulations for [001] nanowires with diameters of 12 nm find low energy facets between the amorphous and crystalline layers. Simulations for [110] nanowires find weak faceting and an inhomogeneous amorphous-crystalline boundary.

Keywords

nanostructuresimulationamorphous
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 910: Symposium A – Amorphous and Polycrystalline Thin-Film Silicon Science and Technology – 2006 , 2006 , 0910-A01-04
Copyright
Copyright © Materials Research Society 2006

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