FAPbI3 kelvin probe force microscopy NTU LFM Pzt BTO LiquidImaging Tapping Cobalt-dopedIronOxide ContactModeDot DataStorage TiO2 Christmas LeakageCurrent StainlessSteel Battery Liquid ThermalDetectors self_healing FloppyDisk Dimethicone InorganicCompound Protein Ceramics DNA HACrystal PhaseChange TemperatureControl Aggregated_molecules ScanningKelvinProbeMicroscopy #Materials SAM Jason Nickel LithiumNiobate