High resolution electron microscopy study on the structure of C 70 Langmuir-blodgett film

Abstract

The Langmuir-Blodgett (LB) film of pure C 70 was prepared from pure water subphase by horizontal lifting method. The limiting molecular area of C 70 is around 25 Å 2, which suggests that the film formed at the air-water interface is rather bilayer or multilayer than a single monolayer in thickness. The structural features of C 70 LB film were studied by transmission electron microscopy. Regular lattice fringes, lattice defects such as stacking faults, dislocations as well as amorphous-like disordered arrangements coexist in the film.