Fabrication, characterization of ZnO nanorods on the flexible substrate (Kapton tape) via chemical bath deposition for UV photodetector applications

Abstract

One dimensional ZnO nanorods have been synthesized on flexible substrate. The substrate is Kapton Tape (KT). ZnO Nanorods are produced by using low cost chemical bath deposition method at low temperature. The investigation of the effect of substrate on the morphological, elementary composition, structural characteristics and Raman spectroscopy of ZnO nanorods has been done. Field emission scanning electron microscopy (FESEM), Energy Dispersive analysis (EDX), X-ray diffraction (XRD) and Raman spectroscopy measurements are employed to examine the morphological, compositional and structural characteristics with hexagonal wurtzite structure of the ZnO nanorods arrays. The results found that the average diameter of ZnO nanorods is found to be closely related to the substrate nature. It is concluded that the substrate can effect on the ZnO nanorods growth remarkably and the selective growth of ZnO nanorods is possible through the choice of the substrate. The crystallite size and the lattice constants of the synthesis ZnO nanorods are obtained based on the XRD data. The found results revealed that the increase in the crystallite size is strongly associated with the type of substrate.