Nanostructure ForceDistanceSpectroscopy Electical&Electronics ScanningKelvinProbeMicroscopy China ChemicalCompound STO Biology UnivCollegeLondon TriGlycineSulphate Self-assembledMonolayer AM-KPFM IIT-chennai PFM Conductivity Fet nanobar Resistance MultiLayerCeramicCapacitor suspended_graphene Trench Polyurethane Moire H-BN NUSNNI OrganicSemiconductor BlockCopolymer Conducting Ptfe VinylAlcohol PinPointMode TappingMode Hexylthiophene TempControl HighResolution