Fendb TappingMode FAPbI3 Switching Phenanthrene NCM LateralForce single_layer AlkaneFilm Optoelectronic Magnetic SmallScan Defect SingleCrystal BiasMode Organic Lattice LowDensityPolyethylene Calcite LithiumNiobate LateralPFM Topography BloodCell Calcium Solar semifluorinated_alkanes WWafer PANI Self-assembledMonolayer DomainSwitching Vacuum CuFoil ContactModeDots piezoelectric force microscopy SiliconOxide