Optical Properties of Au Nano-Particles Contained TiO2 Inverse Opal
Takumi NISHINOSONO, Hiromi NAKANO and Yoshifumi AOI
Abstract:The fabrication of Au3+ containing 3-dimensional ordered PS-TiO2 has been accomplished by the Liquid Phase Deposition (LPD) method using polystyrene (PS) colloidal crystal as template. The interstitial spaces of template were completely filled with deposited oxide by the LPD. After calcination, template was completely removed simultaneously Au3+ was reduced to Au, and well-ordered 3D macro porous Au nano- particles dispersed TiO2 was formed. The obtained Au-TiO2 inverse opal was characterized by SEM, TEM, XRD, and VIS spectroscopy. Key Words:Liquid phase deposition, Titanium oxide, Au particles, Inverse opal, Surface plasmon resonance