kelvin probe force microscopy PolymerBlend PtfeMembrane BoronNitride Polyimide ContactMode suspended_graphene Global_Comm PyroelectricDetector PS_PVAC Scratch Potential Step ContactModeDots piezoelectric force microscopy Inorganic_Compound small_scan Vinylpyridine sputter Hafnium_dioxide Zagreb Graphite ElectroDeposition Mobile dichalcogenide Resistance BismuthVanadate Display Gallium_Arsenide Modulus Ptfe Chemical Vapor Deposition DLaTGS SoftSample Floppy