Co/Cr/Pt HOPG SKPM 2-vinylpyridine Resistance optoelectronics TriGlycineSulphate FFM #Materials hetero_structure semifluorinated_alkanes Corrosion Lanthanum_aluminate CuParticle Pzt Techcomp LiftHeight MagneticForceMicroscopy Scratch Vacuum ULCA Chemical_Vapor_Deposition single_layer Terrace Gallium Sulfur UnivCollegeLondon TCS self_healing LifeScience PVA FrictionalForceMicroscopy FrictionForce Copper LiquidImaging