PVAP3HT MoirePattern Liquid LateralForce fifber Lattice medical Mfm Filter Floppy FM-KPFM IMT_Bucharest Foil CVD Steps CuSubstrate amplitude_modulation organic_polymer Gallium_Arsenide Hexatriacontane Adhesion CastIron GaAs Wafer StyreneBeads FloppyDisk LDPE Magnetic Force Microscopy PANI pinpoint mode Defect OxideLayer MechanicalProperty FuelCell plastic