Optical Au111 BCZT CopperFoil Calcite hydrocarbon mechanical_property Ni-FeAlloy Mechanical&nanotechnology layers Indent Tungsten_disulfide Terrace molecular_self_assembly Ferroelectric Chloroform Chungnam_National_University CntFilm Mechanical NUS Polarization cooling Thermoplastic_polyurethane PetruPoni Wildtype CarbonNanotube Oxide ElectrostaticForceMicroscopy silicon_carbide Conducting PetruPoni_Institute Electronics Carbon MeltingPoint HexagonalBN