I want to show LSPR peak position of Ag deposited on Si substrate by UV-VIS spectroscopy.As I could get only reflection spectra,which is the best way to represent it.I mean reflectance or absorbance?and how to convert it to transmittance spectra?
Absorbance. Because that will show a peak which is easier to fit. The relation is A+T+R = 1 in general. For a metallic system or for surface studies T = 0 whereas for a non-reflecting material R = 0.