Controlled Nano-Oxide Layer Coating on Fine Particles with Multiple Optical-Electrical Functions
SiO2 core/TiO2 shell composite particles were synthesized by four different heterogeneous coagulation techniques. The configurations of the composite particles and the microstructure of assembly were characterized by SEM and TEM. The colloidal stability of nano-particles was also computer-simulated by a discrete element method (DEM) in consideration of Brownian motion occurring on the nano-particles. The results indicated that uniform adsorption of the fine particle absolutely needed fine tuning of surface charging conditions and processing steps.
Chi Y.A. Tsao and Jing Kun Guo
W. C. J. Wei et al., "Controlled Nano-Oxide Layer Coating on Fine Particles with Multiple Optical-Electrical Functions", Key Engineering Materials, Vol. 313, pp. 37-42, 2006