What Information Can Be Derived from Absorption Spectra?
The absorption spectra of nanomaterials can provide a wealth of information, including:
Bandgap Energy: The bandgap energy of a semiconductor nanomaterial can be determined from the absorption edge in the spectrum. Particle Size: The position and shape of absorption peaks can be correlated with the size of nanoparticles. Surface Properties: Changes in absorption spectra can indicate modifications in surface chemistry or the presence of surface ligands. Concentration: The intensity of absorption peaks is often proportional to the concentration of nanomaterials in a solution.