Co-grafting of porphyrins and fullerenes on ZnO nanorods: towards supramolecular donor-acceptor assembly.
This work presents the synthesis and physico-chemical characterization of a novel artificial photosynthetic design, using anisotropic semiconducting nanorods as scaffolds to assemble organic donor-acceptor complexes on their surface. These hierarchical hybrid D-A assemblies were obtained by the co-grafting of porphyrins and fullerenes on the ZnO nanorods. Polarity of the solvent and porphyrin to fullerene ratios were investigated to be markedly influencing the donor-acceptor interaction under the co-grafted conditions on ZnO nanorods. Fourier transform infrared spectroscopy, cyclic voltammetry, electronic absorption and fluorescence spectroscopic techniques were used to characterize the formation and investigate the optoelectronic properties of porphyrin-fullerene complexes on the surface of ZnO. To the best of our knowledge, this is the first example of highly interacting porphyrin-fullerene complexes on ZnO nanorods, which may allow generating efficient nanosystems for artificial photosynthesis and harvesting of solar energy.
Centre Interdisciplinaire de Nanoscience de Marseille (CINaM), UMR 7325 CNRS, Aix Marseille Université, Marseille, France.
Syed M
SM
Shah
Aiko
A
Kira
Hiroshi
H
Imahori
Daniel
D
Ferry
Hugues
H
Brisset
Frédéric
F
Fages
Jörg
J
Ackermann