PS_PVAC SurfaceOxidation molecular_self_assembly MeltingPoint ContactMode plastics Morphology Praseodymium Gallium Treatment HexacontaneFilm PUR HexagonalBoronNitride SSRM Mapping Ceramic Sio2 Ptfe PinpointNanomechanicalMode thermal_property Platinum GalliumPhosphide Hexacontane Forevision aluminum_nitride tip_bias_mode Indent Thermal Composite CompactDisk norganic Pyroelectric AIN AEAPDES Layer