Sphere oxide_layer AlkaneFilm ScanningThermalMicroscopy Optic mechanical property HanyangUniv Reduction Water LifeScience Wildtype Mobile Tapping MultiLayerCeramicCapacitor conductive Collagen margarine Gallium SiWafer PiezoelectricForceMicroscopy Flake PinpointNanomechanicalMode small_scan ThermalConductivity Singapore Phase Ceramics Defects self-assembled_monolayer Tungsten_disulfide CntFilm Wafer ULCA piezoelectric force microscopy Conductance