Nanopattern biocompatible Dr.JurekSadowski Piezoresponse Chungnam_National_University INSP CuSubstrate Flake Techcomp BariumTitanate StrontiumTitanate Polyimide Polystyrene TemperatureControllerStage silicon_carbide Thermoplastic_polyurethane high_resolution Kevlar Pzt Molybdenum_disulfide Graphene hard_disk_media aluminum_nitride CuParticle Electical&Electronics ContactMode Wonseok PvdfBead HardDiskMedia plastics MetalCompound TriGlycineSulphate ScanningSpreadingResistanceMicroscopy SicMosfet Chemical Vapor Deposition