Influence of Precursors on Morphology and Spectroscopic Properties of ZnO Nanoparticles

ZnO Nanopowders are prepared with three different precursor's viz., NaOH, KOH and Na2CO3 using co-precipitation method. Further samples are characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), UV-Vis Optical absorption and Photoluminescence (PL) spectroscopy analyses. Morphology and optical properties of ZnO nanoparticles are investigated for the each precursor. XRD patterns indicate hexagonal phase unit cell structure. ZnO nanoparticles exhibit an absorption band at 355 nm and two photoluminescence bands peaking at 397 nm & 530 nm. From the analyses of results, it is very clear that precursors used in the present study have played a vital role in surface morphology, structural and optical properties of ZnO nanoparticles.