Ordered supramolecular assembly of porphyrin-fullerene composites on nanostructured SnO2 electrodes

Very high photocurrent generation is seen for an ordered supramolecular composite structure Of C-60 and porphyrin assembled on Sno(2) electrodes. The simple substitution of methoxy groups at the meta positions of the meso-phenyl groups on the porphyrin ring leads to the ordered stacking arrangement shown in the figure, with separate electron and hole transport paths along the 1D porphyrin chains and 2D C-60 sheets.