Pores Graphite StyreneBeads ForceDistanceSpectroscopy Ptfe PUR Treatment Solution Pinpoint BiFeO3 UnivOfMaryland Subhajjit Gold ScanningSpreadingResistanceMicroscopy CaMnO3 Scanning_Thermal_Microscopy Adhesive solar_cell HfO2 AM-KPFM suspended_graphene Carbon Alkane nanomechanical membrane Defect ElectroChemical AdhesionForce Wonseok Magnetic Force Microscopy LiquidImaging Polypropylene SiliconOxide DOE graphene_hybrid