Fabrication and characterization of dye-sensitized solar cells using Allium cepa flower extract as a means of harnessing the solar energy

Authors

  • Samuel Emuvokeraye Omoyibo
    Physics Department, Dennis Osadebay University, Anwai Asaba, Delta State, 320242, Nigeria
    https://orcid.org/0009-0003-8425-6248
  • Blessing Uyoyou Osolobri
    Science Laboratory Technology Department, Delta State Polytechnic, Ogwashi-uku, Nigeria
  • Lawrence Oghenerivwe Anho
    Chemical Engineering Department, Federal University of Petroleum Resources, Effurun, Nigeria
  • Ufuoma Alexander Odenema
    Physics Department, Dennis Osadebay University, Anwai Asaba, Delta State, 320242, Nigeria
    https://orcid.org/0009-0007-6430-2883

Keywords:

Allium cepa, Organic solar cell, DSSC efficiency, Fill factor, Current voltage simulation

Abstract

Climate change and global warming have spurred a growing urgency to transition from traditional energy sources to sustainable alternatives. This article explores the realm of renewable energy, focusing on the potential of dye-sensitized solar cells (DSSCs) as an eco-friendly solution. The study examines the efficiency of a DSSC utilizing a dye extract from Allium Cepa (onion) flowers, shedding light on the material's viability as a photosensitizer. The article covers the physics of solar cells, the operation principle of DSSCs, and the specific components involved in fabricating a DSSC based on Allium Cepa extract. The findings show that the extract obtained from Allium Cepa flower exhibited maximum absorbance of 1.4793 at a wavelength of 437.74 nm in the visible region of the electromagnetic spectrum. And when adsorbed on the TiO2 semiconductor surface, the absorbance of the sample increased to the value of 1.5189 at a wavelength of 423.89 nm in the visible region. The energy bandgap of 4.21 eV was obtained for Allium Cepa extract. The fill factor of 0.61 was obtained, and a light conversion efficiency of 0.43 % was achieved. With these results, the dye extract obtained from dry Allium Cepa flowers is a good photosensitizer for making dye-sensitized solar cells.

Dimensions

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Published

2026-01-27

How to Cite

Fabrication and characterization of dye-sensitized solar cells using Allium cepa flower extract as a means of harnessing the solar energy. (2026). Recent Advances in Natural Sciences, 4(1), 211. https://doi.org/10.61298/rans.2026.4.1.211

Issue

Volume 4, Issue 1, June 2026 (In Progress)

Section

Articles
Copyright & Licensing

Copyright (c) 2026 Samuel Emuvokeraye Omoyibo, Blessing Uyoyou Osolebri, Lawrence Oghenerivwe Anho, Ufuoma Alexander Odenema

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Fabrication and characterization of dye-sensitized solar cells using Allium cepa flower extract as a means of harnessing the solar energy. (2026). Recent Advances in Natural Sciences, 4(1), 211. https://doi.org/10.61298/rans.2026.4.1.211