THE OPTICAL AND STRUCTURAL PROPERTIES OF ZnO NANORODS

In photovoltaic (PV) devices, a transparent conducting oxide (TCO) film is used as a transparent electrode which permits sun rays to reach to the photoactive semiconducting layers and also to collect the photogenerated electrons. Also, transparent conductive oxides (TCOs) are a very important part of solar cells substructure [1]. Among the conductive oxides, ZnO is a remarkable preferred transparent conductive oxide because of its beneficial electrical and optical features [2,3] . For their optoelectronic features nanostructures zinc oxide (ZnO) materials are used as a plentiful and economic option for TCOs. In this work, ZnO thin films were produced in nanorod form on lamellar glass by using hydrothermal and spin coating techniques. The ZnO thin films were defined using UV-Vis spectra, field emission electron microscopy (FE-SEM) and X-ray diffractometer (XRD). The XRD peaks were determined as a hexagonal wurtzite cell structure. The FE-SEM photograph illustrated that the structure of samples has nanorod shape particles. The average size of the nanorod diameter is between 50 and 100 nm. Also, the ZnO samples are highly transparent and the optical transmittance values is over 85%.