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Synthesis of gold-silica composite nanowires through solid-liquid-solid phase growth.

Journal of nanoscience and nanotechnology (2003-11-06)
Maggie Paulose, Oomman K Varghese, Craig A Grimes
RESUMO

Nanoscale wires of silicon oxide, and silicon oxide with embedded gold-silicide nanospheres, are synthesized by heating of a gold-coated silicon wafer at temperatures of 1000 degrees C or above, with the resulting wires having diameters ranging from 30 to 150 nm and lengths of approximately 1 mm. This simple fabrication process should make possible economical bulk production of nanowires. Studies indicate that the growth of these gold-silica composite nanowires occurs directly on the silicon wafer by a solid-liquid-solid mechanism.

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Sigma-Aldrich
Silicon monoxide, powder, −325 mesh
Sigma-Aldrich
Silicon monoxide, pieces, 3-10 mm, 99.99% trace metals basis