부산대학교 도서관

Nanostructures with C 60 fullerene and carbon composite film were obtained by thermal sublimation in vacuum of microcrystalline C 60 powder onto non heated silicon and cover glass substrates. With increasing deposition rate of fullerenes, they decayed during the growth of the film. Surface and interface of nanostructures were studied using Raman scattering, atomic force microscopy and the modulation spectroscopy method of the electroreflectance. We have found that the deposition rate of the C 60 molecular beam strongly influences on the composition of the films, their crystalline structure and surface morphology. Franz-Keldysh and surface quantum-size effects were observed in nanostructures with fullerenes. The value of the built-in electric field, the energy of the quantum levels and the width of surface quantum well, depending on the heterosystems manufacturing technology, were determined. In heterosystems with carbon films these effects were absent.