Polyethylene KelvinProbeForceMicroscopy amplitude_modulation FrictionalForce Typhimurium SetpointMode PtfeMembrane Film graphene_hybrid Photovoltaics MechanicalProperty mechanical_property domain_switching Polymer PolyStylene cooling Dimethicone Chromium MBE HighResolution Butterfly ForceVolumeImage WS2 Mfm HexagonalBoronNitride small_scan Temasek_Lab EvatecAG LaAlO3 KAIST Materials CVD PrCurve MechanicalProperties IcelandSpar