membrane Oxidation CuSubstrate heterojunctions block_copolymer Cross-section Polyvinylidene_fluoride FrictionalForceMicroscopy SPMLabs epitaxy ScanningTunnelingMicroscopy Yeditepe Tapping AlkaneFilm tip_bias_mode H-BN TemperatureControllerAFM Mechanical Lateral_Force_Microscopy Insulator FM_SKPM Logo molecules domain_switching Galfenol CalciumHydroxide PetruPoni_Institute MolecularSelfAssembly Deposition PhaseImaging PpLdpe RedBloodCell LiquidImaging Boron China