Abstract:

A fullerene-phosphine metal complex C60Pt(dpppe) was synthesized by ligand substitution method with bis(diphenylphosphino) pentane and C60 as ligand and platinum as central metal. The product was completely characterized by MS, elemental analysis, UV-Vis, IR and XPS. At the same time, the redox properties of the product were studied by cyclic voltammetry. The results showed that the reduction potential was negatively shifted after C60 coordination with platinum. In addition, the energy level structure of the compound was determined by electronic spectrum, and energies of the highest occupied orbital and the lowest unoccupied orbital were 5.635 eV and 3.815 eV. In the meantime, the photovoltaic effect of the complex was determined in the photochemistry cell. The results showed that the fullerene-phosphine metal complex exhibited high photoelectric conversion property, especially under the conditions of BQ/H2Q redox couples, and a maximum value of 358 mV was obtained for the photovoltage when the film thickness was 1~2 μm.

Key words: fullerene, bis(diphenylphosphino) pentane, matel complexes, photoelectric effection