piezoelectric force microscopy AM_KPFM FailureAnlaysis small_scan MolecularSelfAssembly BlockCopolymer Pvdf PolymerPatterns Molybdenum Film suspended_graphene LaAlO3 PVAP3HT OxideLayer UnivMaryland Indent CrossSection Lateral_Force_Microscopy Workfunction MechanicalProperties Polyaniline StainlessSteel FrictionForce BloodCell Floppy Array norganic doped SiWafer ThinFilm Fujian BiasMode Silicon F14H20 Topography