2d_materials flakes AtomicLayer dichalcogenide CrossSection Bismuth Filter Pinpoint PFM Polyvinylidene_fluoride NTU Writing PetruPoni FuelCell Yeditepe Nanotechnology Barium_titanate PinpointPFM BTO Polymer Conductive AFM DataStorage Vanadate blended polymers DeflectionOptics Spincast DLaTGS DentalProsthesis SKKU cross section SiliconOxide LMF Yttria_stabilized_Zirconia Electical&Electronics fifber Forevision