Abstract:
Interaction of varying coverages of Ni metal with solid films of C60 and C70 has been investigated by UV and X-ray photemission spectroscopy. The shifts in the valence bands of C60 (as well as of C70) with increasing Ni coverage accompanied by a shift of the C 1s level of the fullerene to lower binding energies suggest charge-transfer from the metal to the fullerene as in transition metal complexes of pi-systems.