| Summary: | Zinc oxide nanowires (ZnO NWs) have attracted a lot of attention due to their special characteristics and wide range of uses in nanoelectronics, photonics, sensing, and energy harvesting. Conventional synthesis methods for ZnO NWs often face challenges, such as slow reaction times, limited control over NW shape, and poor scalability. Therefore, it is imperative to develop an advanced synthesis technique that can rapidly produce ZnO NWs while allowing precise control over their structural and functional characteristics. In this study, ZnO NWs were successfully synthesized using a hybrid microwave-assisted sonochemical technique (HMAST) using zinc acetate dihydrate as the starting material. The optimized parameters were set at a solution concentration of 12.5 mM and microwave deposition power of 600 W. The deposition time was varied from 15 to 90 min, and the effect of different deposition times on the morphological, structural, and optical properties of the ZnO NWs was also studied. The samples were characterized by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and ultraviolet-visible (UV-Vis) spectroscopy. The results revealed the production of aligned, uniformly distributed hexagonal wurtzite structure of ZnO NWs with an average diameter size of approximately 31.9 nm. The XRD spectra indicated highly crystalline ZnO NWs, showing the sharpest and narrowest intensity of (002) peaks. The UV-Vis spectra showed high transmittance spectra and a sharp absorption edge, suggesting the smaller particle size of ZnO and strong absorbance in the UV region. From the findings, it can be confirmed that the properties of ZnO NWs produced are controllable by adjusting the deposition time in the HMAST, leading to the formation of high-quality ZnO NWs. © 2024, Malaysian Society of Analytical Sciences. All rights reserved.
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