Abstract: The present application relates to a process that is useful for preparing a graphene layer that is transparent and of stabilized and improved electrical conductivity, the process comprising at least the steps of: (i) providing at least one graphene layer that is transparent and that possesses a sheet resistance, R?ini, (ii) doping at least one zone of the graphene layer to form a doped graphene zone having a stabilized sheet resistance, R??, of value lower than R?ini, wherein step (ii) is carried out by spraying the surface of at least the zone of the graphene layer (i) with at least one dopant chosen from organometallic complexes and salts of platinum or palladium of +IV or +II oxidation state.

Abstract: 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.

Abstract: The invention relates to a method for protecting the interior of at least one cavity (4) having a portion of interest (5) and opening onto a face of a microstructured element (1), consisting of depositing, on said face, a nonconformal layer (6) of a protective material, in which said nonconformal layer closes off the cavity without covering the portion of interest. The invention also relates to a method for producing a device comprising such a microstructured element.

Abstract: The invention concerns a method for growing oriented carbon nanotubes on a sample using a target of carbon or a variety of carbon in a deposition chamber where a plasma predominates. The sample (16) is arranged in contact with the target (15), in such a way that the target has a free surface and that the sample offers a free surface, the plasma causing the growth of carbon nanotubes on the free surface of the sample.

Abstract: 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.

Abstract: The data recording device comprises a network of carbon nanotubes formed on a flat substrate and constituting microtips operating in conjunction with a substantially flat storage medium. The carbon nanotubes are initially inclined by a predetermined angle comprised between 5° and 40° with respect to the plane of the substrate. The nanotubes flex when they come into contact with the storage medium, parallel to the substrate. The substrate preferably comprises a raised structure designed to act as support for the free ends of the nanotubes to bear on.

Abstract: The invention relates to a method for protecting the interior of at least one cavity (4) having a portion of interest (5) and opening onto a face of a microstructured element (1), consisting of depositing, on said face, a nonconformal layer (6) of a protective material, in which said nonconformal layer closes off the cavity without covering the portion of interest. The invention also relates to a method for producing a device comprising such a microstructured element.

Abstract: The data recording device comprises a network of carbon nanotubes formed on a flat substrate and constituting microtips operating in conjunction with a substantially flat storage medium. The carbon nanotubes are initially inclined by a predetermined angle comprised between 5° and 40° with respect to the plane of the substrate. The nanotubes flex when they come into contact with the storage medium, parallel to the substrate. The substrate preferably comprises a raised structure designed to act as support for the free ends of the nanotubes to bear on.

Abstract: The invention concerns a method for growing oriented carbon nanotubes on a sample using a target of carbon or a variety of carbon in a deposition chamber where a plasma predominates. The sample (16) is arranged in contact with the target (15), in such a way that the target has a free surface and that the sample offers a free surface, the plasma causing the growth of carbon nanotubes on the free surface of the sample.