Figure 1From: Fe effect on the optical properties of TiO2:Fe2O3 nanostructured composites supported on SiO2 microsphere assembliesSiO 2 microspheres of 365 nm average size deposited on glass substrate. (a) SEM micrograph at ×10,000 and (b) lateral view of the SiO2 spheres at ×35,000 showing the formation of a single layer.Back to article page