CopperFoil Piezo Force-distance StrontiumTitanate ito_film Organic Polydimethylsiloxane Treatment Materials Polyethylene Silicon STO IMT_Bucharest Ito PvdfFilm optoelectronics Pattern neodymium_magnets NtuEee BoronNitride LDPE CancerCell MBE SrO Sio2 Adhesive SurfaceChange Varistor hard_disk_media LightEmission Polyurethane Sphere Sic PECurve ScanningKelvinProbeMicroscopy