PiezoelectricForceMicroscopy Conduct FAPbI3 FM_KPFM AAO Wang Lanthanum_aluminate Non-ContactMode Reduction HafniumDioxide Fiber Regensburg atomic_layer VerticalPFM DLaTGS HexagonalBoronNitride molecular_self_assembly LiquidCrystal Pinpoint StyreneBeads light_emitting CalciumHydroxide polyvinyl acetate SRAM molecule fifber Water SThM Trench Polarization DiffractiveOpticalElements Pinpoint PFM Bacterium mfm_amplitude Calcium