Microfrictional behavior of C-60 particles in different C-60 LB films studied by AFM/FFM

C-60 was supposed to be a super lubricant on the basis of its unique spheri cal and highly symmetric structures. In the present work, efforts have been made to give some experimental approaches and evidences that strongly supp ort the supposition of the "rolling effect" of C60 For this purpose, three kinds of C-60 LB films were prepared designated for the predictable effects with or without "rolling". By studying the AFM morphologies and their corr esponding frictional images, some evidences supporting the "rolling effect" of C-60 were observed in C-60/BA (behenic acid) and C-60/AA (arachidic aci d)/OA (octadecylamine), while for the C-60 derivative LB film, results indi cated a "nonrolling effect" related to a high frictional force.