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Nanoscale liquid phase epitaxy between Si and Au nanoparticles

Published online by Cambridge University Press:  31 January 2011

Yutaka Wakayama ,
Haruko Fujinuma  and
Shun-ichiro Tanaka
Yutaka Wakayama
Affiliation:
Tanaka Solid Junction Project, ERATO, Japan Science and Research Corporation, 1–1–1 Fukuura, Kanazawa-ku, Yokohama 236, Japan
Haruko Fujinuma
Affiliation:
Tanaka Solid Junction Project, ERATO, Japan Science and Research Corporation, 1–1–1 Fukuura, Kanazawa-ku, Yokohama 236, Japan
Shun-ichiro Tanaka
Affiliation:
Tanaka Solid Junction Project, ERATO, Japan Science and Research Corporation, 1–1–1 Fukuura, Kanazawa-ku, Yokohama 236, Japan
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Abstract

A self-assembly technique was used for fabrication of a Si/metal interface in nanometer scale. Fine particles of gold of nanometer-order diameter were generated by a gas-phase condensation method and deposited on a Si substrate. Through a heat treatment and a cooling process, a nanoscopic Si–Au composite structure was formed on the surface of the Si substrate. Then, surface diffusing Si atoms played an important role for fabrication of the Si–Au structure which were epitaxially grown projecting onto the substrate. Furthermore, the Si/Au interface was atomically flat with no mixed-layer formation, and the Au nanoparticles also had the same crystal orientation as that of the Si dots in spite of a large lattice constant mismatch between them. This structure was considered to be fabricated as a result of minimization of the total surface and interface energy of the Si/Au system.

Type
Articles
Information
Journal of Materials Research , Volume 13 , Issue 6 , June 1998 , pp. 1492 - 1496
Copyright
Copyright © Materials Research Society 1998

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