Journal of Energy and Natural Resources
Volume 5, Issue 1, February 2016, Pages: 11-15
Received: Jan. 30, 2016;
Accepted: Feb. 9, 2016;
Published: Feb. 24, 2016
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Danladi Eli, Department of Physics, Nigerian Defence Academy, Kaduna, Nigeria
Muhammad Ahmad, Department of Physics, Kaduna State University, Kaduna, Nigeria
Idodo Maxwell, Department of Physics, Nigerian Defence Academy, Kaduna, Nigeria
Danladi Ezra, Department of Agricultural Science, Kaduna State University, Kaduna, Nigeria
Aungwa Francis, Department of Physics, Nigerian Defence Academy, Kaduna, Nigeria
Sunday Sarki, Department of Physics, Kaduna State University, Kaduna, Nigeria
Dye-sensitized solar cells (DSSCs) were fabricated using natural dyes extracted from roselle flowers and carica papaya leaves extract as photosensitizers. The photovoltaic perfomance of the DSSCs were evaluated under 100 mAcm-2 light intensity. The roselle (Hibiscus Sabdariffa) extract sensitized solar cell gave a short circuit current density (Jsc) of 0.180 mAcm-2, an open circuit voltage (Voc) of 0.470 V, a fill factor (FF) of 0.552, and an overall solar energy conversion efficiency (η) of 0.046%. Also, the pawpaw leaves extract sensitized cell gave a Jsc of 0.094 mAcm-2, Voc of 0.433 V, FF of 0.544 yielding a conversion efficiency of 0.022%. The cell sensitized by the roselle extract shows better sensitization, which was in agreement with the broadest spectrum of the extract adsorbed on TiO2 film. The sensitization performance related to interaction between the dye and TiO2 surface is discussed.
Dye-Sensitized Solar Cells Using Natural Dyes Extracted from Roselle (Hibiscus Sabdariffa) Flowers and Pawpaw (Carica Papaya) Leaves as Sensitizers, Journal of Energy and Natural Resources.
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