Optical properties Nanostructured materials 3 Nanostructures 3 Zinc oxide 3 Atomic force microscopy 2 Copper oxides 2 Crystallite size 2 CuO nanomaterials 2 CuO nanowire device 2 CuO nanowire devices 2 CuO nanowires 2 Defect engineering 2 Different precursors 2 Electrical conductivity 2 Electronic equipment 2 Field emission scanning electron microscopes 2 II-VI semiconductors 2 Image enhancement 2 Irradiation 2 Laser nanojoining 2 Metal-semiconductor-metal structures 2 Nanorods 2 Nanosecond lasers 2 Nanowire devices 2 Nanowires 2 Point defects 2 Porous nanostructures 2 Resistive switching 2 Semiconductor lasers 2 Sol-gels 2