Bacteria DNA MolecularSelfAssembly TappingMode mechanical property Wafer Conductance SicMosfet Bismuth PVAC STO self-assembly PUR Cross-section ThinFilm Annealed SThM OrganicSemiconductor OrganicCompound plastics MetalCompound Adhesive mfm_amplitude strontiu_titanate HBN Aluminum CrossSection Sic FloppyDisk Electronics University_of_Regensburg Organic ConductingPolymer ring shape Ferroelectric