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Pi-pi⃰ orbital transitions and photo-degeneracy of C.acuminata sensitized solar cells

Abodunrin, T.J and Boyo, A. O. and Usikalu, M.R. and Obafemi, L and Oladapo, O and Kotsedi, L and Yenus, Z and Maaza, M (2017) Pi-pi⃰ orbital transitions and photo-degeneracy of C.acuminata sensitized solar cells. In: 2nd International Symposium on Frontier of Applied Physics, 2017.

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Dye-sensitized solar cells (DSSCs) have acquired great prominence as favourable low-cost photovoltaics due to their ease of fabrication, all- year -availability, ease of obtaining raw materials and adjustable optical properties like transparency and colour. These advantages coupled with the ability to work under poor lighting makes them a suitable candidate for next generation of research. In this research, C.acuminata-sensitized photo anodes play an important role for achieving high performance since the porous metal oxide films provide a large specific surface area for dye loading and the possibility to extend the absorption threshold of past studies of sensitizers. The doctor blade method and high-temperature sintering were some of the methods used in the fabrication of the photo anode. A study of the performance of the C.acuminata-DSSCs with four different electrolyte sensitizers based on iodide redox mediator is determined. The result is DSSCs that exhibit a maximum power output of 39.37 W, fill factor of 0.7 and a power conversion efficiency of 0.6% under unfavourable sunlight intensity conditions and photo-degradation of about 37.5 % in absorbance after 425 suns.

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science > QC Physics
Divisions: Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: Mrs Patricia Nwokealisi
Date Deposited: 07 Oct 2019 15:40
Last Modified: 07 Oct 2019 15:40

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