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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 ,
Judith C. Yang ,
Fengting Xu ,
John A. Barnard  and
Z. Zhang
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
Information
MRS Online Proceedings Library (OPL) , Volume 737 , 2002 , F6.3
Copyright
Copyright © Materials Research Society 2003

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References

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