Photoelectrochmeical Cell Based on Natural Pigments and ZnO Nanoparticles
Journal of Energy and Natural Resources
Volume 5, Issue 1, February 2016, Pages: 1-10
Received: Nov. 4, 2015; Accepted: Nov. 12, 2015; Published: Jan. 21, 2016
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Getachew Yirga, Department of Physics, Haramaya University, Dire Dawa, Ethiopia
Sisay Tadesse, Materials Science Program, Addis Ababa University, Addis Ababa, Ethiopia
Teketel Yohannes, Department of Chemistry, Hawassa University, Hawasa, Ethiopia
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Natural pigments extracts from Bougainvillea spectabilis, Carissa Ovata, Hibiscus sabdariffa, Amarathus iresine herbisti, Beta vulgaris, are used as natural sensitizers for a dye sensitized solar cell (DSSC). ZnO nanoparticles were synthesized using sol-gel method and the size of the nanoparticle was determined using effective mass approximation model. Devices were Assembled using ZnO nanoparticles and natural sensitizers. DSSCs based on ZnO nanoparticles and ethanol extract of Amarathus iresine sensitizers have shown relatively better conversion efficiency of 0.039. Incident photon to current conversion efficiency (IPCE), short circuit current density (Jsc) and open circuit voltage (Voc) were measured for all the sensitizers.
Natural Dyes, Electrolytes, Solar Cells, Titanium Dioxide (TiO2)
To cite this article
Getachew Yirga, Sisay Tadesse, Teketel Yohannes, Photoelectrochmeical Cell Based on Natural Pigments and ZnO Nanoparticles, Journal of Energy and Natural Resources. Vol. 5, No. 1, 2016, pp. 1-10. doi: 10.11648/j.jenr.20160501.11
Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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