2dMaterials PVA Pore Topography Morphology Ni81Fe19 LogAmplifier contact Silicon YszSubstrate Transparent Boron silicon_oxide AdhesionForce NCM\ Silver medical ScanningIon-ConductanceMicroscopy MESA structure GaAs CuFoil ContactModeDots H-BN SingleLayer light_emitting Hexylthiophene LMF KelvinProbeForceMicroscopy Modulus #Materials StrontiumTitanate Change LiquidCell Insulator nanomechanical