SThM OpticalWaveguides Roughness contact China AlkaneFilm Film SolarCell Aggregated_molecules Ceramic DataStorage AM_KPFM Mechinical StyreneBeads Sphere Lateral_Force_Microscopy Sulfur Ito Ferroelectric single_layer TriGlycineSulphate Lift GaN PinpointPFM Polyvinylidene SSRM ContactMode PiezoelectricForceMicroscopy self_assembly Hexylthiophene CalciumHydroxyapatite ItoGlass tip_bias_mode OrganicSemiconductor ForceVolumeMapping