Gold (Au) doped ZnO thin film was synthesized on a glass slide through sol gel- dip coating method. Thin film was annealed at optimized temperature. The optical properties of gold-ZnO film were characterized by UV-VIS-NIR spectrophotometery. The band gap energy value was found to be 3.71e V, carried out in 300-1000nm range. The optical studies of Au-ZnO thin film demonstrated its potential for optoelectronic applications. X-ray diffractometer (XRD) structural studies confirm the wurtzite hexagonal structure of Au doped ZnO thin film. Preferential growth occurs along the (101) plane. The size of the crystallite was measured to be 25.01nm. Scanning Electron Microscopy (SEM) analysis revealed that the film has a granular structure. The doping of Au influenced surface morphology and roughness of the film. Vibrating Sample Manometer (VSM) measurements revealed that the deposited film is ferromagnetic at room temperature.
One of the most difficult problems the world is now experiencing is climate change. Global warming has long-term, regional effects on ethics, science, society, politics, and the economy. Renewable energy sources and energy storage technologies are potential solutions to this problem. The current study highlights the role that metal oxide supercapacitors play in advancing sustainable energy practices. This aligns with many Sustainable Development Goals (SDGs), such as Goal 13 (Climate Action) and Goal 7 (Affordable and Clean Energy). This work investigates the manufacture of metal oxide supercapacitors via hydrothermal synthesis and in situ polymerization, emphasizing their electrochemical characteristics, stability, and conductivity. Furthermore, X-ray diffractometer (XRD) analyses of metal oxide materials' crystal structures, which provide light on crystal phases, crystallite size, and orientation. Using a scanning electron microscope (SEM), the metal oxide electrode's surface morphology is examined. Electrochemical properties are studied by optimizing a setup which includes the selection of the electrodes, electrolyte, and cell configuration, for supercapacitor testing. This work uses UV spectrophotometry to study electronic transitions in metal oxide materials, with a focus on photonics. This research explores the development of advanced metal oxide supercapacitors, which offer practical solutions for global warming, clean energy development, and sustainable energy storage.
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