Commissariat a L'energie Atomique Et Aux Energies Alternatives

Commissariat {dot Over (a)} L'ėnergie Atomique Et Aux Énergies Alternatives

Yann Kervella

Renaud Demadrille

Damien Joly

Lionel Picard

Thibaut Gutel

Maxime Godfroy

Jean-Benoit Denis

Jean-Benoît Denis

The present invention concerns an organic dye comprising a photochromic entity, a segment -eD representing an electron donor segment and a segment -L-A with -L- representing a covalent bond or a spacer segment and particularly a pi-conjugated spacer segment, and -A representing an electron attractor segment able to form a covalent bond with a semi-conductor. The present invention concerns the use thereof as photosensitizer in a photovoltaic device and said photovoltaic device.

Organic photochromic dye and uses thereof for dye sensitized solar cells

An organic dye corresponding to one of the following structures (I) or (II): eD-pi-conjugated chromophore-L-A (I), or A-L-pi-conjugated chromophore-eD (II), where eD represents an electron donor segment, L represents a covalent bond or a spacer segment and in particular a pi-conjugated spacer segment, A represents an electron acceptor segment capable of forming a covalent bond with a semiconductor, in which the pi-conjugated chromophore comprises at least one unit of formula (III): in which the radicals R1 and R2, which are identical or different, represent an optionally substituted aryl group; the radicals R3 to R8, which are identical or different, represent a hydrogen, an optionally substituted alkyl group or an optionally substituted aryl group; and X1 and X2, which are identical or different, are chosen from S, Se and O.

Organic dye with improved efficiency and uses thereof in photovoltaic cells

The present invention relates to a polymer possessing a linear backbone selected from the homopolymers belonging to the family of polyfluorenes, polycarbazoles, polyanilines, polyphenylenes, polyisothionaphthenes, polyacetylenes, polyphenylene vinylenes, and copolymers thereof, said backbone bearing at least one side group possessing at least one nitroxide function. It also relates to an electrode material, an electrode and a lithium secondary battery obtained from such a polymer.

Polymer serving as an electrode material for lithium secondary batteries

The present invention relates to an organic colorant corresponding to one of the following structures (I) or (II):eD-pi-conjugated chromophore-L-A&#x2003;&#x2003;(I)A-L-pi-conjugated chromophore-eD&#x2003;&#x2003;(II)

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Saint Verand, France

Yann Kervella