Molecular Dyads Comprising Metalloporphyrin and Alkynylplatinum(II) Polypyridine Terminal Groups for Use as a Sensitizer in Dye-Sensitized Solar Cells

A new class of molecular dyads comprising metalloporphyrin-linked alkynylplatinum(II) polypyridine complexes (see figure; TF = trifluoromethanesulfonyl) has been synthesized and characterized. The complexes can be applied as sensitizers for the fabrication of dye-sensitized solar cells (DSSCs), and they give satisfactory photovoltaic responses. Subtle changes in the alkynyl linker show significant improvements in the performance of the DSSCs