| abstract |
The present invention relates to compounds of general formula (I) wherein R 100 and R 200 are each independently hydrogen, C 1 -C 10 -alkyl which in case of C 2 -alkyl may be interrupted by one and in case of C 3 -C 10 -alkyl by one or two non- adjacent oxygen atoms, C 5 -C 7 -cycloalkyl, aryl, aryl-C 1 -C 10 -alkyl or aryloxy-C 1 -C 10 -alkyl, D is an m-valent (m = 1, 2 or 3) donor moiety which comprises at least one carbon- carbon or carbon-heteroatom double bond and/or at least one unfused or fused carbo- or heterocyclic ring, A is an acceptor moiety which comprises at least one carbon- carbon or carbon-heteroatom double bond and/or at least one unfused or fused carbo- or heterocyclic ring, and the donor moiety D and the acceptor moiety A are π- conjugated to one another. Furthermore, the present invention relates to the use of compounds of formula (I) for producing dye-sensitized solar cells and to dye-sensitized solar cells comprising compounds of formula (I). |