Abstract
In this work, we present advanced AFM-based methods for mapping local chemistry and wettability with sub-micron resolution. AFM force spectroscopy is used to probe local variations in wettability, offering insights that conventional contact angle measurements lack the sensitivity to resolve nanoscale inhomogeneities. Complementary, Nano-Vis imaging visualizes optical absorption phenomena at the nanoscale, providing spatially resolved information on local chemical composition and bandgap across the surfaces.