single_layer PtfeFilter Hafnia HanyangUniv Molybdenum_disulfide fluoroaalkane BiFeO3 AdhesionEnergy Sic CrossSection Phosphide KelvinProbeForceMicroscopy Reduction light_emission Mosfet Beads 2dMaterials OxideLayer MfmAmplitude MultiferroicMaterials Praseodymium Lateral SetpointMode Singapore mechanical property 2d_materials AM-KPFM LithiumNiobate SFAs self_healing ScanningThermalMicroscopy Semiconductor Sapphire SurfaceOxidation LMF