Abstract:
Disclosed is an organic solar cell with a photoactive region which comprises at least one organic donor material in contact with at least one organic acceptor material, wherein the donor material and the acceptor material form a donor-acceptor heterojunction and wherein the photoactive region comprises at least one substituted perylene.
Abstract:
The present invention relates to chlorinated naphthalenetetracarboxylic acid derivatives, preparation thereof and use thereof as charge transport materials, exciton transport materials or emitter materials.
Abstract:
Disclosed is an organic solar cell which comprises at least one photoactive region which comprises at least one indanthrene compound which is in contact with at least one fullerene compound, and the use of indanthrene compounds in organic photovoltaics, especially in the form of a component cell of a tandem cell.
Abstract:
The present invention relates to cyanated naphthalenebenzimidazole compounds of the formula (I) and mixtures thereof, in which R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 and R 10 are each independently hydrogen, cyano or aryl which is unsubstituted or has one or more identical or different substituents R Ar , where R Ar is as defined in the claims and in the description, with the proviso that the compounds of the formula I comprise at least one cyano group. The invention further relates to color converters comprising at least one polymer as a matrix material and at least one cyanated naphthalenebenzimidazole compound or mixtures thereof as a fluorescent dye, to the use of the color converters and to lighting devices comprising at least one LED and at least one color converter.
Abstract:
The present invention relates to the use of dibenzotetraphenylperiflanthene of formula (I) as an electron donor material in an organic solar cell comprising photoactive donor-acceptor transitions in the form of a bulk heterojunction.
Abstract:
The invention relates to compounds of the formula (I) in which Y1 and Y2 are O or NRa or NRb, where Ra and Rb are H or organyl; Z1 to Z4 are O or S; R11 to R14, R21 to R24 are Cl, F; where also 1 or 2 of the radicals R11 to R14, R21 to R24 may be CN, and/or 1 radical R11 to R14, R21 to R24 may be H; and where Z1 or Z2 may also be NRc when Y1 is NRa, where Ra and Rc together are a bridging group X with 2 to 5 atoms; and where Z3 or Z4 may also be NRd when Y2 is NRb, where Rb and Rd together are a bridging group X with 2 to 5 atoms; a process for the preparation thereof, and the use thereof as emitter materials, charge-transport materials or exciton-transport materials.
Abstract:
The present invention relates to cyanated compounds of the formula (I) wherein at least one of the radicals R2, R3, R4 and R5 is CN, and the remaining radicals are selected from hydrogen, chlorine and bromine; X is O, S, SO or SO2; m is 0, 1, 2, 3 or 4; R1 is selected from bromine, chlorine, cyano, —NRaRb, C1-C24-alkyl, C1-C24-haloalkyl, C1-C24-alkoxy, C1-C24-haloalkoxy, C3-C24-cycloalkyl, heterocycloalkyl, heteroaryl, C6-C24-aryl, C6-C24-aryloxy, C6-C24-aryl-C1-C10-alkylene, etc.; A is a diradical selected from diradicals of the general formulae (A.1), (A.2), (A.3), and (A.4) wherein R6, (R7)n, (R8)o and (R9)p are as defined in the claims and in the description. The invention further relates to color converters comprising at least one polymer as a matrix material and at least one cyanated compound of formula (I) or mixtures thereof as a fluorescent dye, to the use of the color converters and to lighting devices comprising at least one LED and at least one color converter.
Abstract:
The present invention relates to chlorinated naphthalenetetracarboxylic acid derivatives, preparation thereof and use thereof as charge transport materials, exciton transport materials or emitter materials.