Laser induced response on gas impact upon nickel oxide films doped with oxidized silver nanoparticles

Laser optical response of NiO nanostructered films doped with oxidized silver nanoparticles in spectral range of 633-700 nm under the action of carbon monoxide has been revealed. Increased sensitivity of laser induced optical response to carbon monoxide has been demonstrated by micro and nanostructured NiO films modified with silver oxidized nanoparticles. Absorption and diffuse reflection spectra data of composites were used to determine compounds of the composite (Ag 2 O, NiO, Ag). The sensitivity of the gas action and its dependence on the film microstructure are shown and discussed.