The surface enhanced Raman scattering effects of composite nanocrystals of Ag-TiO2.
The composite particles of Ag-TiO2 both in a nanocrystal form was prepared by photoreduction of AgNO3 in the rutile colloidal solution. The surface plasmon absorption (SPA) band of the silver clusters supported on the TiO2 nanocrystal was red shift, and a strong surface enhanced Raman scattering (SERS) effect for the composite particles of Ag-nanocrystalline TiO2 was observed. The SERS effect is relating to the red shift phenomenon of SPA band, which could be explained by induced-resonance effect.
Liu
Y
Y
Institute of Photographic Chemistry, Academia Sinica, Beijing, PR China.
Liu
C
C
Zhang
Z
Z
Wang
C
C
D003102:Colloids; D003460:Crystallization; D008854:Microscopy, Electron; D012542:Scattering, Radiation; D012834:Silver / Q000737:chemistry*; D012835:Silver Nitrate / Q000737:chemistry; D013059:Spectrum Analysis, Raman / Q000379:methods; D014025:Titanium / Q000737:chemistry*
D003102:Colloids; C009495:titanium dioxide; D012834:Silver; D012835:Silver Nitrate; D014025:Titanium