METHOD OF SYNTHESISING AND GROWING NANORODS FROM A METAL CARBIDE ON A SUBSTRATE, SUBSTRATES THUS OBTAINED AND APPLICATIONS THEREOF

摘要

The invention relates to a method of synthesising nanorods from a carbide of a metal M1 on a substrate. The inventive method consists in: (a) depositing, on the substrate, a layer of oxide nanocrystals of metal M1 and oxide nanocrystals of at least one other metal M2 which is different from metal M1, the oxide nanocrystals of metal M1 being dispersed in said layer; (b) reducing the oxide nanocrystals of metals M1 and M2 into the corresponding metals; and (c) selectively growing nanocrystals of metal M1. The invention also relates to a method of growing nanorods of a carbide of metal M1 on a substrate from nanocrystals of said material, to the substrates thus obtained and to the applications thereof, such as in the production of: microsystems comprising chemical or biological functions and, in particular, biosensors; electron-emitting sources, e.g. for flat television or computer screens, etc.