MolecularSelfAssembly DataStorage SiWafer Cell PS_PVAC thermal_conductivity SingleCrystal Optical Morphology WPlug chemical_compound PVA Collagen Bacteria ULCA vertical_PFM Zagreb CP-AFM piezoelectric force microscopy Step norganic temp Strontium BismuthVanadate Graphite PrCurve hetero_structure Hafnia NTU Vac Etch FuelCell BaTiO3 BoronNitride Phase