Study of the angular and polarization structures of radiation scattered by monolayers of metal-containing nanostructures during their oxidation

Spectral peculiarities of monolayers made of oxidized nanogranules of amorphous copper and their aggregates with high surface concentration

“…Complete oxidation occurred after 18 months for a sample with a deposition time of 5 min. The simulation with the spherical layered particles qualitatively confirms such a behaviour of the spectral dependences [21]. Note that the smaller the deposition time of the sample, the faster the oxidation to the CuO phase is achieved (figure 5).…”

“…As a result the spectra are transformed too. The slope of the curves in the short-wavelength region as well as the position and the width of the plasma resonance in the longwavelength region changes for samples with different packing density (figures 5 and 6) [5,6,8,21]. Consider these aspects in more detail for a sample with 5 min deposition time.…”

“…Figure 6 shows the absorption spectrum of the planar structure as a function of oxidation time in a free atmosphere. The plasma resonances are localized over 600-740 nm and correlate with the oxide thickness and the number of granules in chains and aggregates (figures 5 and 6) [5,6,8,21].…”