From Si nanotubes to nanowires: Synthesis, characterization, and self-assembly

Through electroless silver deposition, we have successfully fabricated Si nanowires (SiNWs) in a conventional vessel containing aqueous HF and AgNO 3 solution. Their growth mechanisms are analyzed on the basis of a self-assembled localized microscopic electrochemical cell model. A series of scanning...

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Bibliographic Details
Published in:Journal of crystal growth 2005-04, Vol.277 (1), p.143-148
Main Authors: Qiu, T., Wu, X.L., Mei, Y.F., Wan, G.J., Chu, Paul K., Siu, G.G.
Format: Article
Language:English
Subjects:
A1. Nanostructures
A2. Electrochemical growth
B2. Semiconducting silicon
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Methods of nanofabrication
Nanoscale materials and structures: fabrication and characterization
Nanotubes
Physics
Quantum wires
Self-assembly
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Summary:Through electroless silver deposition, we have successfully fabricated Si nanowires (SiNWs) in a conventional vessel containing aqueous HF and AgNO 3 solution. Their growth mechanisms are analyzed on the basis of a self-assembled localized microscopic electrochemical cell model. A series of scanning electron microscope observations reveal the detailed growth process of the SiNWs. The formation of intermediate Si nanostructures (undetached Si nanotubes) is suggested to be responsible for the growth of triangular shaped SiNWs. The shape and structure of the SiNWs and intermediate undetached Si nanotubes are promising characteristics for applications in interconnection and basic components for future nanoelectronic and optoelectronic devices.
ISSN:0022-0248
1873-5002
DOI:10.1016/j.jcrysgro.2005.01.095