Fullerene-Silicon structures: Simulations and Experimental Results

EMILIANO J. DI LISCIA; CRISTIÁN HUCK IRIART; E.B. HALAC; MARIA REINOSO; HUGO A. HUCK

Simposio; XXIII Latin American Symposium on Solid State Physics; 2018

Fullerene-Silicon crystalline structures were studied using a semi-empirical potential of the form proposed by Tersoff. The Zinc-Blende structure was proposed as the most stable for this material.Fullerene (C60) and silicon were simultaneously deposited by thermal evaporation and chemical vapor deposition respectively. The samples were characterized by Scanning electron microscopy, Energy-dispersive X-ray spectroscopy, Micro-Raman spectroscopy, Wide-angle X-ray scattering, X-ray photoelectron spectroscopy and its thermal stability was studied up to 600o C and discussed and compared with pure C60 deposited by the samemethod. A crystalline material was obtained and results suggest a polymerization of fullerenes through silicon atoms was achieved. Cubic FCC and hexagonal structures were found, the former in agreement with our simulation results. The samples proved to be thermally stable.