Device FrictionForce mechanical property Co/Cr/Pt Etch nanobar Singapore Corrosion graphene_hybrid Chungnam_National_University AtomicSteps Organic UnivCollegeLondon Sadowski Yeditepe Phase Writing gallium_nitride Beads LDPE Optoelectonics PANI InorganicCompound SurfaceChange I-VSpectroscopy polymeric_arrays Aluminum TungstenThinFilmDeposition Film CastIron HardDiskMedia ito_film PhthalocyaninePraseodymium BoronNitride CrAu