​​Morphological, structural and optical properties of ZnO nanowires: The effect of growth time​
Authors:   NANO-SciTech Lab (NST), Centre for Functional Materials and Nanotechnology (FMN), Institute of Science (IOS), Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia, Mohd Zamri Nurul Zulaikha ,   Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia, Malek Mohd Firdaus ,   NANO-SciTech Lab (NST), Centre for Functional Materials and Nanotechnology (FMN), Institute of Science (IOS), Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia,   Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia, Mohammad Maryam ,   NANO-SciTech Lab (NST), Centre for Functional Materials and Nanotechnology (FMN), Institute of Science (IOS), Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia,   Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia,   Department of, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Perak Branch, Tapah Campus, Tapah Road, 35400 Perak, Malaysia, Bakri Mohd Dzulfiqar ,   NANO-SciTech Lab (NST), Centre for Functional Materials and Nanotechnology (FMN), Institute of Science (IOS), Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia,   Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia, Rostan Nur Fairuz ,   NANO-SciTech Lab (NST), Centre for Functional Materials and Nanotechnology (FMN), Institute of Science (IOS), Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia,   Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia, Khairul Azhar Nurfatini Atiqrah ,   NANO-SciTech Lab (NST), Centre for Functional Materials and Nanotechnology (FMN), Institute of Science (IOS), Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia,   Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia, Mamat Mohamad Hafiz ,   NANO-ElecTronic Centre (NET), Faculty of Electrical Engineering, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia, Shamsudin Muhammad Salleh ,   Smart Manufacturing and Systems Research Group (SMSRG), University of Southampton Malaysia (UoSM), 79100 Iskandar Puteri, Johor, Malaysia,   Laser Centre, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia, Mahmood Mohamad Rusop ,   NANO-SciTech Lab (NST), Centre for Functional Materials and Nanotechnology (FMN), Institute of Science (IOS), Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia,   NANO-ElecTronic Centre (NET), Faculty of Electrical Engineering, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia
Published: November 2023

Zinc oxide (ZnO) nanostructures (NSs) such as nanowires (NWs), nanorods, nanobelts, nanotubes, and nanonails have received a lot of attention in recent years due to their exceptional chemical and physical characteristics and wide range of potential uses. Researchers have investigated its possible uses in optoelectronic devices, field emitters, solar cells, sensors, and transparent electrodes due to its special features. This work is focused on a new method for the synthesis of ZnO NSs, particularly ZnO NWs, via microwave-assisted ultrasonic technique, with the advantages of low cost and the potential for large scale. The samples were evaluated with respect to the structural, morphological, and optical properties using various methods, such as field-emission scanning electron microscopy, X-ray diffraction, and UV-Vis spectroscopy. The reaction occurs in only 60 minutes with minimal energy expenditure. ZnO NWs produced at 600 W had diameters ranging between 33.53 and 41.81 nm and lengths that varied between 1.84 and 2.1 µm, were totally crystalline, and showed preferential growth in the (002) direction, which presented a hexagonal wurtzite structure.