ORGANIC DYES COMPRISING A HYDRAZONE MOIETY AND THEIR USE IN DYE-SENSITIZED SOLAR CELLS

摘要

The present invention relates to compounds of general formula (I) wherein R100 and R200 are each independently hydrogen, C1-C10-alkyl which in case of C2-alkyl may be interrupted by one and in case of C3-C10-alkyl by one or two non- adjacent oxygen atoms, C5-C7-cycloalkyl, aryl, aryl-C1-C10-alkyl or aryloxy-C1-C10-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 pi- 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).