Abstract
The production of zinc oxide nanoparticles (ZnO NPs) utilizing different vegetable extracts (onion, cabbage, carrot, and tomato) was performed in this research owing to its excellency over other methods of synthesis, namely, simplicity, environmental friendliness, and the elimination of harmful compounds. Fresh extracted onion, cabbage, carrot, and tomato of ZnO NPs are characterized by Fourier transform infrared (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-visible spectroscopy. FTIR findings demonstrate that the prepared nanoparticles were observed in the spectrum of 626 cm-1–1219 cm-1 with some other functional groups. Wurtzite hexagonal structure of the prepared ZnO NPs was observed from XRD results. In addition, the prepared nanoparticles were failed into nanoscales (17 nm, 18 nm, 24 nm, and 15 nm) calculated from Scherrer’s equation. Nearly spherical shapes were seen from SEM image for onion and tomato extraction while rod and tube for carrot and cabbage, respectively. Two broad peaks were observed from UV-vis spectroscopy results for each extract. The presence of a wide range of energy bandgaps in the region of 3-4 eV was detected, indicating that ZnO NP material can be employed in metal oxide semiconductor-based systems. The dye-sensitive solar cell based on ZnO NPs has been successfully synthesized, and the efficiency of the device has been evaluated by measuring the current density-voltage behaviour under the presence of artificial sunshine. The increased effectiveness of the manufactured dye-sensitive solar cell is attributable to a large improvement in dye molecular adsorption onto the surface of ZnO NPs. Thus, the usage of the green produced ZnO NPs with creating dye sensitivity solar cell is a simple and viable way for the well-being of our future.
Highlights
Power originates in numerous forms as a result of burning forests to produce fire in ancient times to electrical productions in the contemporary era
In order to identify the probable functional groups in biomolecules contained with the presence of a natural extract that are due to the reduction of the zinc ion into zinc oxide nanoparticles (ZnO NPs), a Fourier transform infrared spectral analysis (FTIR) was performed
FTIR spectrum of zinc oxide (ZnO) NPs synthesized with onion, cabbage, carrot, and tomato extracts demonstrated almost the absorption peaks at 626, 1219, 1392, 1744, and 2361 cm-1
Summary
Power originates in numerous forms as a result of burning forests to produce fire in ancient times to electrical productions in the contemporary era. Latest advancement in solar energy transformation innovations that use biosemiconductors as the light harvesting layer makes use of metallic oxide semiconductor (MOS) nanostructures for reliability. Both electrode and the biomolecules are involved in charge extraction and transportation, according to the National Renewable Energy Laboratory [2]. Nanoscience is a broad topic that concerns of the research and implementation of materials on a nanoscale. Because of its vital applications as antibacterial agents, photovoltaic cells, textile fabrics, and polymers to eradicate microorganisms, zinc oxide nanoparticles (ZnO NPs) have garnered a considerable deal of interest from researchers in recent years [3]
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