Silicon nanowire synthesis by a vapor-liquid-solid approach

Mao, Aaron; Ng, H. T.; Nguyen, Pho; McNeil, Melanie; Meyyappan, M.

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NASA NTRS · 20050218547

Silicon nanowire synthesis by a vapor-liquid-solid approach

Mao, Aaron·Ng, H. T.·Nguyen, Pho·McNeil, Melanie·Meyyappan, M.

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Abstract

Synthesis of silicon nanowires is studied by using a vapor-liquid-solid growth technique. Silicon tetrachloride reduction with hydrogen in the gas phase is used with gold serving as catalyst to facilitate growth. Only a narrow set of conditions of SiCl4 concentration and temperature yield straight nanowires. High concentrations and temperatures generally result in particulates, catalyst coverage and deactivation, and coatinglike materials.

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Evaluation Studies Crystallization/methods Nanotubes/analysis/chemistry/ultrastructure Silicon/analysis/chemistry Research Support, U.S. Gov't, Non-P.H.S Volatilization Solutions Particle Size Molecular Conformation Nanotechnology/methods Temperature Phase Transition

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Mao, Aaron, Ng, H. T., Nguyen, Pho, McNeil, Melanie, Meyyappan, M.. 2005-05-01. Silicon nanowire synthesis by a vapor-liquid-solid approach. https://ntrs.nasa.gov/citations/20050218547

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