HanyangUniv Copper Anneal KevlarFiber Polystyrene fe_nd_b CuParticle ConductingPolymer PS_LDPE LateralForceMicroscopy Blend Array SKKU Silver Morphology Oxide SiliconCrystal ring shape Butterfly Polyimide Layer Film MoS2 TPU Strontium light_emission 2dMaterials F14H20 Bacterium NiFe LDPE Vanadate CeramicCapacitor Magnetic Pinpoint PFM