Abstract
ZnO nanoparticles/ZnO nanorods (ZnO NPs/ZnO NRs) were prepared via Chemical methods: dip-coating/sol-gel method (DC/SG-M) and hydrothermal method (HT-M). The structure of ZnO NPs/ZnO NRs was studied utilizing X-ray diffraction (XRD). The UV-Visible spectrometer was used to analyze the absorption spectra. Surface morphology of prepared ZnO NPs/ZnO NRs was studied via field-emission scanning electron microscopy (FE-SEM). Starting with (XRD) study, it confirms that the prepared ZnO NPs/ZnO NRs has the hexagonal phase structure. Moreover, the average crystallite size of the ZnO NPs/ZnO NRs was 22.7 nm and 51.5 nm, respectively. FE-SEM result reveals that the prepared ZnO NPs/ZnO NRs samples have shown the nanoparticles-shape of the first prepared layer via dip-coating and radial hexagonal-shape of the second prepared layer via the hydrothermal method. The absorption spectra of ZnO NPs and ZnO NRs were around at (382 and 400) nm with the estimated direct band gaps energy were (3.24 and 3.10) eV, respectively.
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