Conversion of silica nanoparticles into Si nanocrystals through electrochemical reductionElectronic supplementary information (ESI) available. See DOI: 10.1039/c4nr01687d

The precise design of Si-based materials at the nanometer scale is a quite complex issue but of utmost importance for their present and potential applications. This paper reports the first attempt to address the electrochemical reduction of SiO 2 at the nanometer scale. SiO 2 nanoparticles are first...

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Bibliographic Details
Main Authors: Nishihara, Hirotomo, Suzuki, Takashi, Itoi, Hiroyuki, An, Bai-Gang, Iwamura, Shinichiroh, Berenguer, Raúl, Kyotani, Takashi
Format: Article
Language:English
Online Access:Get full text
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Summary:The precise design of Si-based materials at the nanometer scale is a quite complex issue but of utmost importance for their present and potential applications. This paper reports the first attempt to address the electrochemical reduction of SiO 2 at the nanometer scale. SiO 2 nanoparticles are first covered with a uniform carbon layer with controlled thickness at an accuracy of a few nanometers, by pressure-pulsed chemical vapor deposition. With appropriate thickness, the carbon layer plays significant roles as a current path and also as a physical barrier against Si-crystal growth, and the SiO 2 nanoparticles are successfully converted into extremely small Si nanocrystals (
ISSN:2040-3364
2040-3372
DOI:10.1039/c4nr01687d