Study of the conductance and structure characteristics of C-60/Sb bilayers

The electrical and structural properties of C-60/Sb bilayers were investiga ted. In situ direct-current conductivity measurement results indicate that the doping of Sb into C-60 induces the C-60 order-disorder phase transition temperature to increase to similar to 278 K. According to the results of a transmission electron microscope and atomic force microscope study, such a transition (near 278 K) implies the formation of an interfacial structure of Sb-doped C-60 Annealing and the absorption of gases destroy the interfac ial structure of Sb-doped C-60. A possible mechanism for such a phase trans ition is discussed.