PolyimideFilm VerticalPFM LiftHeight semifluorinated_alkanes FrictionalForceMicroscopy PS_PVAC ElectrostaticForceMicroscopy UnivCollegeLondon PvdfBead LFM Hysteresys Monisha NusEce electrospinning alkanes SKPM ThinFilm Ptfe TempControl doped TransitionMetal HfO2 LiquidImaging Temasek_Lab AdhesionEnergy Regensburg DiffractiveOpticalElements Potential MolecularSelfAssembly ScanningThermalMicroscopy Yeditepe_University Praseodymium Thermoplastic_polyurethane suspended_graphene NCM