PolyStylene TungstenThinFilmDeposition Growth Au111 SThM WPlug ForceVolumeMapping AAO Cancer mechanical_property PiezoelectricForceMicroscopy FFM Alloy Fluoride Pinpoint PFM lift_mode Hydroxyapatite Phthalocyanine AlkaneFilm NUS FM_KPFM StainlessSteel HighAspect Growing PolyvinylideneFluoride MonoLayer SiliconCrystal epitaxy CuSubstrate Gong StrontiumTitanate AdhesionForce CHRYSALIS_INC 2dMaterials Roughness