FAPbI3 Genetic SurfaceOxidation ContactModeDot Inorganic_Compound Korea FFM oxide_layer BismuthVanadate PinpointNanomechanicalMode OrganicCompound ScanningThermalMicroscopy Hafnium_dioxide Polarization UnivMaryland Hexatriacontane StyreneBeads temperature_control Conductance Galfenol Electical&Electronics IcelandSpar DomainSwitching silicon_oxide Magnetic Force Microscopy Ito IISCBangalore Epoxy MechanicalProperty Microchannel NUS mechanical_property layers BiasMode Ananth