Title: GROWTH AND CHARACTERIZATION OF ZnO NANORODS (NRS) USING DIFFERENT PRECURSOR CONCENTRATIONS THE FIRST TIME ON POLYTETRAFLUOROETHYLENE (PTFE) SUBSTRATE
Author(s): O.F. Farhat, M.M. Halim, Naser M. Ahmed, A. A. Abuesamen and M. A. Qaeed
ZnO nanorods (NRs) were successfully synthesized on PTFE substrates by a chemical bath deposition technique (CBD). The effects of precursor concentration on the growth of ZnO (NRs) were systematically characterized by X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Photoluminescence (PL), and Raman spectroscopy. The XRD results reveal that all the as-grown ZnO (NRs) arrays grew preferentially oriented along the c-axis with a hexagonal wurtzite structure. The FESEM images show that the ZnO (NRs) grown perpendicular to the PTFE substrates had lengths diameters ranging from 30 nm to 90 nm. PL and Raman analyses reveal that the aligned ZnO (NRs) exhibited a sharp ultraviolet peak E2 (high) at wave number between 437 and 438 cm-1, respectively. Furthermore, the ZnO (NRs) grew vertically under 50 mM precursor concentration, resulting in a high structural and optical quality. These ZnO (NRs) can be potentially used for fabricating nano-electronics and nano-optical devices.