Alkanethiol Self-Assembled Monolayers Formed on Silicon Substrates

概要

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We have prepared alkanethiol monolayers, directly attached to a silicon substrate, by immersing hydrogen-terminated silicon in 1-hexadecanethiol solution at 150 °C. The evidence for the 1-hexadecanethiol monolayer formation was obtained and the resulting monolayers were compared with the monolayers formed from 1-hexadecanol using water contact angle measurements, X-ray photoelectron spectroscopy, ellipsometry, and atomic force microscopy. The densities of the alkyl chains in the 1-hexadecanethiol monolayers were lower than those of the 1-hexadecanol monolayer. The durability of these monolayers to 5% HF aqueous solution was also examined. The 1-hexadecanethiol monolayer is found to be less durable than the 1-hexadecanol monolayer.
Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
2010-01-25