METHOD FOR PRODUCING SILICON NANOWIRES

摘要

A method for producing a material based on silicon nanowires is provided. The method includes the steps of: i) bringing into contact, in an inert atmosphere, a sacrificial support based on a halogenide, a carbonate, a sulfate or a nitrate of an alkali metal, an alkaline earth metal or a transition metal having metal nanoparticles, with the pyrolysis vapours of a silicon source having a silane compound, by which silicon nanowires are deposited on the sacrificial support; and optionally ii) eliminating the sacrificial support and recovering the silicon nanowires produced in step ii).

主权项

1. A process for the preparation of a material based on silicon nanowires, comprising the stages of:
i) bringing a sacrificial support based on an alkali metal, alkaline earth metal or transition metal halide, carbonate, sulfate or nitrate, comprising metal nanoparticles, on the one hand, into contact, under an inert atmosphere, with the pyrolysis vapors from a silicon source comprising a silane compound, on the other hand, whereby silicon nanowires deposited on said sacrificial support are obtained; and optionally ii) removing the sacrificial support and recovering the silicon nanowires obtained in stage ii).