self-assembled_monolayer MfmPhase rubber Semiconductor PvdfFilm Thermal Moire Polyvinylidene StrontiuTitanate Current HOPG Led BiasMode SurfaceOxidation Composition Defects CrossSection PS_PVAC PolymerBlend Adhesive Growing PVA GaAs C_AFM domain_switching graphene_hybrid Pipette CP-AFM Nanopattern Barium_titanate Boundary thermoplastic_elastomers Hole H-BN Friction