Cookey, P.S. and Amakoromo, T.E. and Awuhe, T.T. (2024) Effect of Natural Dye Extracts on the Absorbance Characteristics of TiO2 in Dye-Sensitized Solar Cells. Journal of Energy Research and Reviews, 16 (5). pp. 47-56. ISSN 2581-8368
Cookey1652024JENRR116973.pdf - Published Version
Download (703kB)
Abstract
Natural dye extracts from Chinese Ixora (Ixora chinensis) flower, Cassod flower (Cassia Siamea), Cassava leaf (Manihot Esculenta), purple heart (Tradescantia Pallida) and Copper leaf (Acalypha Wilkesiana) have been explored as sensitizers for the fabrication of dye-sensitized solar cells. The properties of the dyes were investigated using the FTIR and they all showed broad absorption bands in the 3800 to 3000cm-1 wavelenght and strong presence of intermolecular H-bonds. The effect of dye extracts on the absorbance and transmittance features of TiO2 was well studied by the UV-VIS and the absorbance peak was in the case of sensitization with Manihot Esculenta seen to radically improve above 1.0 at 350nm wavelength. Finally, the current and voltage characteristics of the DSSC were studied in sunlight and at a peak sunlight intensity of 601m/w2, the Manihot and Cassod sensitized devices exhibited maximum voltage values of 115 and 84mV respectively and maximum current values of 4.32 and 2.99mA. These plants have shown great potential for application in fabrication of cost effective and environmentally friendly DSSCs.
Item Type: | Article |
---|---|
Subjects: | Eprints AP open Archive > Energy |
Depositing User: | Unnamed user with email admin@eprints.apopenarchive.com |
Date Deposited: | 09 May 2024 05:25 |
Last Modified: | 09 May 2024 05:25 |
URI: | http://asian.go4sending.com/id/eprint/2141 |