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Quantitative V-L-S Growth Model and Experiments of Fe Catalyzed Si Nanowire Formation

Published online by Cambridge University Press:  11 February 2011

Guangwen Zhou
Affiliation:
Department of Materials Science and Engineering, University of Pittsburgh, PA 15261
Judith C. Yang
Affiliation:
Department of Materials Science and Engineering, University of Pittsburgh, PA 15261
Fengting Xu
Affiliation:
Department of Materials Science and Engineering, University of Pittsburgh, PA 15261
John A. Barnard
Affiliation:
Department of Materials Science and Engineering, University of Pittsburgh, PA 15261
Z. Zhang
Affiliation:
Beijing Laboratory of Electron Microscopy, Institute of Physics, Chinese Academy of Sciences, Beijing 10080, China
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Abstract

We report the formation of Si nanowires (SiNWs) by vapor-liquid-solid (V-L-S) mechanism where Si atoms are pumped from Si wafer. This happens when a material has the large difference of activity in its pure (Si) and alloy state (Si-Fe). We developed a kinetic model to quantitatively describe the growth of the nanowires. The model predicts that the length of the nanowires increases linearly with the growth time.

Type
Research Article
Copyright
Copyright © Materials Research Society 2003

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References

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