UnivMaryland piezoelectric force microscopy MoirePattern DiffractiveOpticalElements Oxidation NCM\ 2-vinylpyridine BloodCell InsulatorFilm cooling 2dMaterials solar_cell Electronics PVAP3HT single_layer TCS Battery Piranha Iron CHRYSALIS_INC SingleLayer ForceMapping Reduction ULCA EvatecAG polyvinyl acetate ThinFilm fe_nd_b Graphene STM TappingMode Insulator self-assembled_monolayer EFM ChemicalCompound