I have observed the energy spectrum for CdS thin film using Shimadzu UV 1800. Is it the same as the mechanism in FTIR? Since the highest peak occurs at the very high wavenumber (650 nm = 15384.62 cm–1 ), I have no reference to compare. If it's so much different than the FTIR, what are the possible analysis can be taken from the UV-Vis energy spectrum? I have used both Deuterium and Tungsten lamps as an energy source.
UV-Vis can give information about electronic transitions in your material while FTIR one can see vibrations energies from material`s molecules, so they do not measure the same mechanism.
exactely, uv visible spectroscopy give the band absoption of electronic transitions and so you have access to interaction of radiations in visible and uv with your samples
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