KAIST SurfaceChange UnivMaryland BiFeO3 Display Polystyrene Treatment YszSubstrate medical PDMS Composite Gong Pinpoint PFM ThinFilm SKKU FrictionForce Inorganic_Compound Reduction Ni-FeAlloy Temasek_Lab Led ElectroChemical TemperatureControllerStage ShenYang Tin sulfide VinylAlcohol Melt OpticalModulator HDD Permalloy PUR Mechanical lift_mode Pvdf DataStorage