Commissariat a L'energie Atomique

Centre National De La Recherche Scientifique

Ecole Polytechnique

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Muriel Firon

Bernard Drevillon

Pere Roca I Cabarrocas

Serge Palacin

Solenn Berson

Adam Pron

Renaud Demadrille

Stéphane Cros

Remi De Bettignies

Jocelyne Leroy

Anna Fontcuberta I Morral

Philippe Trouslard

Eric Monterrat

Jérôme Monnot

A method of preparing a polymeric composition with photovoltaic properties comprises a step of blending, in a solvent, at least one electron donor type semiconductor polymeric material essentially in the form of nanofibrils and at least one electron acceptor type material in the solvent, said nanofibrils representing at least 10% by weight of the electron donor type semiconductor polymeric material, to polymeric compositions with photovoltaic properties, and to photovoltaic cells incorporating such polymeric compositions.

Polymeric nanofibril network for photovoltaic cells

Monomeric, oligomeric or polymeric compound corresponding to the following formula (I):   Use of the said compound in an optoelectronic device, such as a photovoltaic cell, a field-effect transistor or an electrochemical sensor. Photovoltaic cell comprising an active layer comprising an electron donor composed of the said compound.

&#x3c0;-conjugated mono-, oligo- and polymeric compounds, and photovoltaic cells comprising them

The invention concerns a photoactive nanocomposite () comprising at least one donor-acceptor couple of semiconductor elements. One of the elements is made of doped nanowires () with sp3 structure, and the other of the elements is an organic compound (). The elements are supported by a device substrate (). The invention also concerns a production method. According to a first embodiment, after their growth, the nanowires () are retrieved, functionalised and solubilised in the organic component (). The mixture is deposited by coating on a device substrate. According to a second embodiment, the nanowires () are formed on a growth substrate () which is also the device substrate. The organic component () is combined with the nanowires () so as to form an active layer (). Such a photoactive nanocomposite () allows production of a photovoltaic cell.

Photoactive nanocomposite and method for the production thereof

The invention relates to a method for measuring gases permeation through a material (M), comprising the steps of: The invention further relates to a device for implementing such a method, and a method for using this device.

Method and device for measurement of permeation

The present invention relates to a heat filter and a process for manufacturing this filter. This heat filter may for example be used to filter surgical or examination lighting composed of a light source which emits energy, or radiation, in the visible and infrared ranges. It allows the light emitted by this source to be filtered so as to prevent infrared radiation from hindering the surgical team or the patient. It includes a substrate, at least one layer of an infrared reflecting material, and a coating forming an interference filter in the visible range. The invention process includes the deposition on a substrate of a layer of an infrared reflecting material and the deposition on this layer of an interference filter in the visible range.

Heat-absorbing filter and method for making same

Growing community of inventors

Egly, France

Muriel Firon