Resistance PhthalocyaninePraseodymium Etch CrAu membrane MESA structure molecules BCZT Graphene Step FrequencyModulation HardDisk Display Chloroform Wang KelvinProbeForceMicroscopy Ca10(PO4)6(OH)2 Spincast FM-KPFM Floppy Melt conductive PetruPoni_Institute TipBiasMode Hexatriacontane PpLdpe EPFL LiBattery Tungsten molecular_beam tip_bias_mode exfoliate Tape Worcester_Polytechnic_Institute solar_cell