The optical properties of quantum dots are characterized using techniques such as UV-Vis Absorption Spectroscopy and Photoluminescence (PL) Spectroscopy. UV-Vis spectroscopy measures the absorption of light across the ultraviolet and visible spectrum, revealing information about electronic transitions and bandgap energies. PL spectroscopy evaluates the emission of light from quantum dots after excitation, providing insights into their emission wavelengths, quantum yield, and photostability.
