Akademik Veri Yönetim Sistemi
JOURNAL OF NANOMATERIALS, 2012 (SCI-Expanded)
We have investigated morphological and optical properties of zinc oxide rods. Highly structured ZnO layers comprising with well-shaped hexagonal rods were prepared by spray pyrolysis deposition of zinc chloride aqueous solutions at similar to 550 degrees C. The rods were characterized by X-ray diffraction, scanning electron microscopy, atomic force microscopy, photoluminescence, and ultraviolet and visible absorption spectroscopy measurements. The deposition of the 0.1mol/L solution at similar to 550 degrees C resulted in crystals with a diameter of 400-1000nm and length of 500-2000 nm. Sharp near-band edge emission peaks, centered at 3844 and 3680 angstrom, dominated the PL spectra of ZnO at 300 K and 6.2 K, respectively. In addition to this, absorption coefficient was determined by absorption measurement. X-ray diffraction, scanning electron microscopy and atomic force microscopy, results suggest that ZnO rods, prepared by spray pyrolysis, have high crystalline quality. This is desirable in nanotechnology applications.