Short time synthesis of zno nanorods prepared by a hybrid deposition technique: effects of seed layer

ZnO nanorods were prepared by a hybrid deposition technique. ZnO seed layers were deposited onto glass substrates by sol-gel spin coating technique. ZnO nanorods were synthesized onto seed layers by chemical bath deposition method in very short time like 30 minutes. Effects of seed layer and the thickness of the seed layer on the crystalline structure and morphology of the ZnO nanorods were investigated using X-ray diffractometer (XRD) and field emission scanning electron microscope (FESEM). It was established that ZnO nanorod does not form without seed layer. It was found that ZnO nanorods synthesized onto seed layer have a perfect crystalline wurzite structure with a preferentially orientation of (002). The intensity of (002) peak strongly increased as the thickness of seed layer increased. It was determined that the majority of synthesized ZnO nanorods on the seed layers are vertical. An increase was observed in the density and the length of the vertically synthesized ZnO nanorods by increasing the thickness of seed layer. The increased thickness of seed layers led to improve the crystalline quality and morphological properties of ZnO nanorods.