Piezo Perovskite molecular_beam DNAProtein PvdfFilm Melt hard_disk_media KelvinProbeForceMicroscopy Graphene PinPointMode HBN TriGlycineSulphate HydroGel TyphimuriumBiofilm NanoLithography MechanicalProperties Chemical_Vapor_Deposition Topography Resistance vertical_PFM DataStorage Phenanthrene F14H20 Carbon ScanningKelvinProbeMicroscopy small_scan Techcomp OxideLayer lift_mode SiliconeOxide MolybdenumDisulfide TemperatureControl Mapping Vinylpyridine LDPE