Method for the collective fabrication of carbon nanofibers on the surface of micropatterns constructed on the surface of a substrate

摘要

The invention relates to a nanofiber fabrication method comprising nanofiber growth from a catalyst zone, furthermore comprising the following steps:
producing at least one micropattern (11) on the surface of a substrate (1);producing a catalyst zone (50) on the surface of said micropattern;nanofiber growth from the catalyst zone,

characterized in that the micropattern (11) comprises a base, at least partially convergent side walls and an upper face, said base being covered with a so-called “poison” layer (4) where no nanofiber growth catalysis effect can take place,
the so-called “poison” layer not being present on said upper face;the base being covered with a catalyst layer (5) on the surface of the so-called “poison” layer;the thickness of the “poison” layer and the thickness of the catalyst layer being such that the nanofibers cannot grow either on the side walls or on the base of the micropatterns constructed beforehand.

主权项

1. A nanofiber fabrication method for nanofiber growth from a catalyst zone, the method comprising the following steps:
producing at least one micropattern on the surface of a substrate, said micropattern having a base, partially convergent sidewalls and an upper face; producing a catalyst zone on the upper face of the micropattern; covering the base with a poison layer for preventing nanofiber growth catalysis; preventing the poison layer from covering the upper face; covering the poison layer on the base with a catalyst layer; dewetting the catalyst zone to form a droplet on the upper face of the micropattern by heating the substrate, wherein the droplet on the upper face is substantially larger than any and all droplets on the sidewalls; and growing the nanofiber from the droplet in the presence of a target; the thickness of the poison layer and the thickness of the catalyst layer being such that no nanofibers are grown on the sidewalls or on the base.