Fractal Growth of SiO Nanoparticles Accompany with Graphene Preparation

Abstract

Anisotropic growth mode is generally leading to simple self-similarity patterns. This paper presents a new perspective of looking at SiOx growth accompanies with graphene growth which is in diffusioncontrolled fractal growth process. Growth of SiO x on the surface of copper was in stages and the samples were constantly monitored by scanning electron microscope. To confirm the critical structure of different etched areas of graphene, Raman spectra as well as energy dispersive spectrum were performed. Morphologies of SiO x nanoparticles could be controlled by varying the Ar/H 2 flow rate ratios and silica gel concentrations. The characteristic topology of branch-like fractal patterns, identical to the topology of ternary-segment fractal line, is observed.