Comparative photo-response performances of dye sensitized solar cells using dyes from selected plants

Dye sensitized solar cells (DSSCs) were fabricated using extracted dyes from Hibiscus rosa-sinensis flower, helianthus annuus flower, mimosa pudica leaves, Luffa cylindrical flower and Lonchocarpus cyanescens leaves. The TiO2 photoelectrodes were prepared and deposited using Doctor blade method and...

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Bibliographic Details
Published in:	Surfaces and interfaces Vol. 20; p. 100619
Main Authors:	Onah, Emmanuel.O., Offiah, S.U., Chime, U.K., Whyte, G.M., Obodo, Raphael.M., Ekechukwu, O.V., Ahmad, Ishaq, Ugwuoke, P.E., Ezema, Fabian.I.
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 01-09-2020
Subjects:	Current density Doctor Blade DSSC Dye Fill factor Open circuit voltage Dye Doctor Blade Current density Fill factor Open circuit voltage DSSC
Online Access:	Get full text
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Summary:	Dye sensitized solar cells (DSSCs) were fabricated using extracted dyes from Hibiscus rosa-sinensis flower, helianthus annuus flower, mimosa pudica leaves, Luffa cylindrical flower and Lonchocarpus cyanescens leaves. The TiO2 photoelectrodes were prepared and deposited using Doctor blade method and then annealed at 450 °C. The elemental composition, structural and morphological studies of the TiO2 photoelectrodes were carried out as well. Optical properties of the dye extract and the dyed photoelectrodes was studied as well as their photoelectrochemical performances. The extracts showed the UV–Vis absorptions in the visible part of light spectrum. The DSSCs components were assembled into a cell module. The DSSC conversion efficiency was studied and DSSC based on dye extracts from Hibiscus rosa-sinensis flower, Helianthus annuus flower and Luffa cylindrical flower, Lonchocarpus cyanescens leaves and Mimosa pudica leaves revealed overall photocurrent conversion efficiencies of 0.48%, 0.35%, 0.29% 0.17% and 0.13% respectively.
ISSN:	2468-0230 2468-0230
DOI:	10.1016/j.surfin.2020.100619