HfO2 I-VSpectroscopy Optoelectonics Chungnam_National_University HighResolution Scratch WWafer Annealed Vacuum Pipette CarbonNanotube PiezoelectricForceMicroscopy Topography DentalProsthesis self-assembled_monolayer Dopped ThermalConductivity HumanHair Temperature SurfaceOxidation GaN HanyangUniv polymeric_arrays Floppy Ceramics SICM LithiumNiobate Al2O3 Epoxy Blood MagneticForceMicroscopy molecular_self_assembly contact Led AdhesionForce