Polarization Pvdf DIWafer AtomicSteps Tapping PolymerBlend LiftHeight KPFM self_assembly Polymer MonoLayer pinpoint mode membrane Optoelectronic Vortex ForceVolume block_copolymer Piezoelectric Spincast TyphimuriumBiofilm CrossSection Co/Cr/Pt Pinpoint PFM OxideLayer Etch Polyaniline ImideMonomer Steps MagneticArray Hysteresys PyroelectricDetector PvdfFilm tip_bias_mode domain_switching PtfeFilter