Abstract: 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.

Abstract: 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.

Abstract: An electrode comprising a support made of a conductor or semiconductor, at least one nanostructure made of a conductor or semiconductor, on at least one of the support surfaces, a layer of redox polymer containing dione units deposited onto the at least one nanostructure. The present disclosure also concerns processes for preparing an electrode coated with such a redox polymer and electrode-based energy storage device containing such a coated electrode.

Abstract: 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.

Abstract: 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.

Abstract: The present invention relates to an organic colorant corresponding to one of the following structures (I) or (II): eD-pi-conjugated chromophore-L-A??(I) A-L-pi-conjugated chromophore-eD??(II) in which eD represents an electron donor segment; L represents a covalent bond or a spacer segment; A represents an electron attractor segment able to form a covalent bond with a semi-conductor; the pi-conjugated chromophore comprising at least two aromatic rings, at least one of which is a thiophene, selenophene or furan type ring. The present invention relates to the use thereof as photosensitizer in a photovoltaic device and said photovoltaic device.

Abstract: The invention relates to the use of compounds comprising at least one 2-(1H-tetrazol-5-yl)pyridine unit, of formula (I) below: as ligands for lanthanides and, more especially, as organic chromophores for complexing these elements. It also relates to lanthanide complexes using these compounds as complexing organic chromophores, and to new compounds containing one or more 2-(1H-tetrazol-5-yl)pyridine units, which are useful as ligands for lanthanides and, in particular, as organic chromophores for complexing these elements. Applications: photonics and optoelectronics, especially for forming light-emitting devices such as electroluminescent diodes; biology, as for example for the preparation of luminescent probes.

Abstract: The present invention relates to an organic colorant corresponding to one of the following structures (I) or (II): eD-pi-conjugated chromophore-L-A??(I) A-L-pi-conjugated chromophore-eD??(II) in which eD represents an electron donor segment; L represents a covalent bond or a spacer segment; A represents an electron attractor segment able to form a covalent bond with a semi-conductor; the pi-conjugated chromophore comprising at least two aromatic rings, at least one of which is a thiophene, selenophene or furan type ring. The present invention relates to the use thereof as photosensitizer in a photovoltaic device and said photovoltaic device.

Abstract: The inventive method for placing and fixing (bonding) a first object, whose surface is functionalized by compounds of formula I Y (X), A? (I), on the surface of a second object whose surface is functionalized by compounds of formula II Y (X)n A (II), wherein A and A? are functional groups enabling to be bonded at least by a link in a covalent manner to an object surface X and X? are aliphatic, linear, branched or cyclic spacers which can comprise one or several hetero or aromatic, or heteroaromatic atoms or consist of several aromatic or heteroaromatic cycles and optionally of alternating aliphatic chains having aromatic or heteroaromatic groups, n and n?=0 or 1 and Y and Y are functions for generating one or several non-covalent bonds wherein said Y or Y? are selected such that they are complementary or can complex a metal atom or an identical metal compound.

Abstract: An organic redox active compound with reversible storage of charge is disclosed. The material characterized by a formula R-M-Y-T. According to some aspects, R represents a deconjugating group, M represents an organic redox active fragment, not comprising any metal ion or metal, capable of reversibly storing at least one charge, T represents a tripod group comprising three groups F, capable of being chemically grafted to a surface of a solid substrate, and Y represents a spacer group separating M from T. A substrate on which the compounds are grafted, a molecular memory device including the compound or the substrate, and an electronic apparatus including the molecular memory device are also disclosed.

Abstract: Monomeric, oligomeric or polymeric compound corresponding to the following formula (I): in which: A represents an optionally substituted polycyclic group, the said polycyclic group comprising at least one group capable of making possible the attachment of a chromophoric group, X1 and X2, which are identical or different, each independently represent a group of formula (II): in which: B and D, which are identical or different, each independently represent an aromatic carbon ring or an aromatic heterocycle which is optionally substituted. 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.

Abstract: The invention relates to the use of compounds comprising at least one 2-(1H-tetrazol-5-yl)pyridine unit, of formula (I) below: as ligands for lanthanides and, more especially, as organic chromophores for complexing these elements. It also relates to lanthanide complexes using these compounds as complexing organic chromophores, and to new compounds containing one or more 2-(1H-tetrazol-5-yl)pyridine units, which are useful as ligands for lanthanides and, in particular, as organic chromophores for complexing these elements. Applications: photonics and optoelectronics, especially for forming light-emitting devices such as electroluminescent diodes; biology, as for example for the preparation of luminescent probes.

Abstract: The inventive method for placing and fixing (bonding) a first object, whose surface is functionalized by compounds of formula I Y (X), A? (I), on the surface of a second object whose surface is functionalized by compounds of formula II Y (X)n A (II), wherein A and A? are functional groups enabling to be bonded at least by a link in a covalent manner to an object surface X and X? are aliphatic, linear, branched or cyclic spacers which can comprise one or several hetero, or aromatic, or heteroaromatic atoms or consist of several aromatic or heteroaromatic cycles and optionally of alternating aliphatic chains having aromatic or heteroaromatic groups, n and n?=0 or 1 and Y and Y are functions for generating one or several non-covalent bonds wherein said Y or Y? are selected such that they are complementary or can complex a metal atom or an identical metal compound.

Abstract: Monomeric, oligomeric or polymeric compound corresponding to the following formula (I): in which: A represents an optionally substituted polycyclic group, the said polycyclic group comprising at least one group capable of making possible the attachment of a chromophoric group, X1 and X2, which are identical or different, each independently represent a group of formula (II): in which: B and D, which are identical or different, each independently represent an aromatic carbon ring or an aromatic heterocycle which is optionally substituted. 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.