SB MEDIATED C-60 THIN-FILM GROWTH ON MICA

We studied the growth of C-60 thin films on a layer of surfactant Sb w hich was predeposited on mica substrates with vacuum vapor deposition method. It was found that the growth behaviors of C-60 films are signi ficantly affected by the surfactant Sb and the substrate temperature. (112)- and (111)-oriented C-60 single-crystal films with large C-60. S ingle crystals were obtained when the substrate temperatures were 200 and 215 degrees C, respectively. The growth mechanisms of the Sb media ted C-60 films were attributed to the reduced surface diffusion rate o f adsorbed C-60 molecules and the lowered boundary potential energy of C-60 islands by surfactant Sb. (C) 1998 American Institute of Physics . [S0003-6951(98)01133-4].