sputter Perovskite lithography GaAs Defects AM_KPFM Sio2 EFMAmplitude Force-distance Logo Forevision molecule ConductingPolymer KPFM Potential WPlug ConductiveAFM single_layer TemperatureControl TemperatureControllerStage margarine Holes H-BN MembraneFilter Conductivity Phase Electrode Transparent Cross-section MetalCompound Magnetostrictive ScanningThermalMicroscopy HydroGel Ferroelectric PhaseChange