TemperatureControlledAFM Vacuum ThermalProperties KelvinProbeForceMicroscopy cannabinoid Calcium Composite mechanical_property AmplitudeModulation 2-vinylpyridine Resistance SurfaceOxidation MembraneFilter SPMLabs Defects conductive heterojunctions hetero_structure SrTiO3 ConductingPolymer Transparent graphene_hybrid Silicon PolymerPatterns Modulus silicon_carbide 2dMaterials Scratch VerticalPFM Polytetrafluoroethylene Epoxy Morphology ULCA PrCurve Ucl