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In the present work we report the effect of enhanced luminescence of gold and silver nanoparticles photodeposited on crystalline and amorphous films of TiO2. Such a system has two main characteristic features. The average distance between metal nanoparticles is of order of several nm. Metal nanoparticles size is less than (or of order of) 10nm. Absorption spectra of the mesoporous films additionally show that most of metal nanoparticles have approximately spherical shape.

Nanoparticles --- Pulsed-laser deposition --- Titanium oxide --- Thin films