Table 1.

The correlation between the amount of silver deposited by sputtering on the layer of TO₂ nanotubes and the structure of the formed metallic layer.

Amount of Silver Sputtered [mg∙cm−2]	Type of Silver Nanostructures
0.01	nanoparticles from 10 to 50 nm in diameter
0.06	nanoparticles from 10 to 50 nm in diameter
0.09	ring on top of nanotubes, reduced light of the tubes, visible nanoparticles with a diameter of 10 to 50 nm on the tube walls
2	complete surface coverage, no nanotubes can be seen