Abstract:
The invention relates to rylene derivatives of general formula (I) in which the variables have the following meanings: rylene contains a polycyclic conjugated ring system, which contains at least one perylene unit (formula II), can contain heteroatoms as ring atoms, can be functionalized by groupings containing CO- groups and/or can carry other substituents different from radicals A; A represents a radical of formula (III); X represents oxygen or sulfur; R represents the same or different radicals: optionally substituted alkyl, cycloalkyl, aryl, hetaryl, -U-aryl, U representing a grouping -O-, -S-, -NR2-, -CO-, -SO- or -SO2-, or C1-C12 alkoxy, C1-C6 alkylthio, -C=CR2, -CR2=CR22, hydroxy, mercapto, halogen, cyano, nitro, -NR3R4, -NR3COR4, -CONR3R4, -SO2NR3R4, -COOR3 or -SO3R3; R1 represents the same or different radicals; hydrogen or one of the radicals R; R2 represents hydrogen or alkyl, radicals R2 being able to be the same or different when repeatedly occurring; R3 and R4, independent of one another, represent hydrogen, optionally, substituted alkyl, aryl or hetaryl, and; n represents 1 to 8.
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 organic solar cell comprising at least one photoactive region comprising an organic donor material in contact with an organic acceptor material and forming a donor-acceptor heterojunction, wherein the photoactive region comprises at least one compound of the formulae Ia and/or Ib where M, (R a ) m and (R b ) n as described in the claims and description. Furthermore, the present invention relates to compounds of formulae Ia and Ib, wherein M, (R a ) m and n are as described in the claims and description and R b is fluorine and to a process for preparing them.
Abstract:
The invention relates to heptarylene and octarylene tetracarboxylic acid diimides of general formula (I), precursors thereof or mixtures thereof, methods for the production thereof, and the use thereof.
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:
A method for producing an organic field-effect transistor, comprising the steps of: a) providing a substrate comprising a gate structure, a source electrode and a drain electrode located on the substrate, and b) applying an n-type organic semiconducting compound to the area of the substrate where the gate structure, the source electrode and the drain electrode are located, wherein the n-type organic semiconducting compound is selected from the group consisting of compounds of the formula (I) wherein R1, R2, R3 and R4 are independently hydrogen, chlorine or bromine, with the proviso that at least one of these radicals is not hydrogen, Y1 is O or NRa, wherein Ra is hydrogen or an organyl residue, Y2 is O or NRb, wherein Rb is hydrogen or an organyl residue, Z1, Z2, Z3 and Z4 are O, where, in the case that Y1 is NRa, one of the residues Z1 and Z2 may be a NRc group, where Ra and Rc together are a bridging group having 2 to 5 atoms between the terminal bonds, where, in the case that Y2 is NRb, one of the residues Z3 and Z4 may be a NRd group, where Rb and Rd together are a bridging group having 2 to 5 atoms between the terminal bonds.
Abstract:
The invention relates to liquid crystalline rylene tetracarboxylic acid derivatives, method for production and use thereof as organic semiconductors of type n for the production of organic field effect transistors and solar cells.