CVD Nanostructure AIN Holes Fe_film P3HT fe_nd_b DeoxyribonucleicAcid NanoLithography Piezoresponse Ucl gallium_nitride DOE GalliumPhosphide ring shape LithiumNiobate silicon_oxide PtfeMembrane SFAs MagneticArray Cobalt-dopedIronOxide WS2 plastics HanyangUniv Composition PVAP3HT PinPointMode ForceVolumeImage Gold flakes single_layer HiVacuum MLCC Monisha Dental