SYNTHESIS AND CHARACTERIZATION OF AG-C-60 NANOSTRUCTURE FILM

A thin film structure with Ag nanocrystallites embedded in a polycryst alline C-60 matrix was grown under high vacuum by codeposition of Ag a nd C-60 onto the hot substrate. The structural and physical properties of the film were characterized by a transmission electron microscope and a Raman scattering spectrometer. The Ag nanoparticles were well di spersed and not aggregated. An ordered nanoscale C-60 lattice was obse rved between the two adjacent Ag particles, and the Raman-active A(g)( 2) pentagonal-pinch mode of C-60 Shifted to lower frequency. These res ults imply a strong interfacial interaction and charge transfer from t he Ag to the C-60. (C) 1997 American Institute of Physics.