We performed the photodeposition of Ag clusters onto a TiO
2 nanosheet hybridized with an amphiphlic Ru(II) complex (denoted by TiO
2–Ru/Ag). Firstly a floating monolayer of [Ru(phen)
2(dC18bpy)](ClO
4)
2 (phen = 1,10-phenanthroline, dC18bpy = 4,
4′-dioctadecyl-2,
2′-bipyridyl) was formed on an aqueous dispersion of exfoliated layered titanate, (TBAOH)
xTi
2−x/4
x/4O
4·H
2O (
x
0.7;![](/images/glyphs/BFN.GIF)
, vacancy; TBAOH = tetrabutylammonium hydroxide) (denoted as TiO
2 nanosheet). The monolayer acted as the
organic part for the hybridization of TiO
2 particles in an aqueous phase. A hybrid film of TiO
2 nanosheet and an amphiphilic metal complex (denoted by TiO
2–Ru) was transferred onto an indium tin oxide substrate by the vertical dipping method. Thereafter the electrode was immersed in 1.0 M AgNO
3 for 10 min and rinsed with water. The electrode was irradiated for 30 min by a Xe-lamp (150 W). Atomic force microscope, X-ray photoelectron spectra and cyclic voltammometry showed the formation of silver nanoparticles with a radius of 20–150 nm. The photocurrent response was measured in the potential range of 0.2–1.2 V (vs. Ag
|AgCl
|KCl(sat)) under the illumination of light (>350 nm). The current increased 1.7 times when the layer number of hybrid films increased from one to two. It should be emphasized that such an increase of photocurrent with a layer number was not observed in the absence of Ag particles.