TPU ConductiveAFM FrictionForce Phthalocyanine UnivCollegeLondon Ito CarbonNanotube Semiconductor Sapphire suspended_graphene CopperFoil Thermoplastic_polyurethane Sulfur Vortex TungstenDeposition kelvin probe force microscopy 2d_materials Blood TemperatureControllerStage HardDisk NTU HOPG IndiumTinOxide Calcite Dimethicone MolybdenumDisulfide Hydroxyapatite HexagonalBN OpticalElement dichalcogenide Treatment Hexatriacontane doped Ferroelectric MagneticPhase