Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Centre National De La Recherche Scientifique

Université Du Mans

Stéphane Campidelli

Renaud Cornut

Dominique Ausserre

Vincent Derycke

Manuel Ausserre

Céline Barchasz

Bruno Jousselme

Gaëlle Charrier

Guillaume Clave

A contrast-amplifying carrier for observing a sample, includes a transparent substrate bearing at least one absorbent coating suitable for behaving as an antireflection coating when it is illuminated at normal incidence at an illumination wavelength &#x3bb; through the substrate and when the face of the coating opposite the substrate is in contact with a medium referred to as a transparent ambient medium, the refractive index nof which is lower than that of the refractive index nof the substrate. The absorbent coating comprises: an absorbent sublayer referred to as the contrast sublayer, deposited on the surface of the transparent substrate; and an absorbent layer referred to as the sensitive layer, distinct from the contrast sublayer and comprising between 1 and 5 sheets of a graphene-type material. Methods for producing and for using such a contrast-amplifying carrier are also provided.

Contrast-amplifying carriers using a two-dimensional material

A method is provided for positioning a micro- or nano-object on a planar support by displacement performed under visual control, wherein the micro- or nano-object is immersed in a transparent medium, called ambient medium, having a refractive index n; the planar support comprises a transparent substrate of refractive index n&#x3e;non which is deposited at least one optically absorbent layer, adapted to behave as antireflection coating when it is lit at normal incidence with a lighting wavelength &#x3bb; through the substrate; and the visual control comprises the lighting of the micro- or nano-object at least with the wavelength &#x3bb; through the substrate, and the observation thereof also through the substrate. A method to scanning probe microscopy and to the assembly of nanostructures is provided.

Method and apparatus for positioning a micro- or nano-object under visual observation

The invention relates to a lithium accumulator comprising at least one electrochemical cell comprising an electrolyte positioned between a positive electrode and a negative electrode, said positive electrode comprising a positive electrode material comprising a carbonaceous material selected from carbon nanotubes, graphene or derivatives of graphene selected from graphene oxides, reduced graphene oxides, said carbonaceous material is covalently functionalized by at least one organic compound comprising at least one electron attractor group.

Lithium accumulator comprising a positive electrode material based on a specific carbon material functionalized by specific organic compounds

The invention relates to a method allowing functionalization of carbon nano-objects and in particular carbon nanotubes and graphene nanosheets, a composition comprising nano-objects functionalized by this method, suspended in an organic solvent, as well as to the uses of this composition. Suitable applications include elaboration of composite materials and, in particular, of nano-composite materials, materials intended for photovoltaics, detection devices of the detector/sensor or biodetector/biosensor type, photocatalysis systems, targeted vectorization systems for compounds of therapeutic or diagnostic interest or further contrast agents for medical imaging.

Method for functionalizing carbon nano-objects, composition comprising functionalized carbon nano-objects suspended in an organic solvent and uses thereof

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Saint Remy l'Honore, France

Stéphane Campidelli