Author(s)

T. J. Abodunrin¹, O. Obafemi¹, A. O. Boyo², T. Adebayo³, R. Jimoh⁴

¹Department of Physics, Covenant University, Ota, Nigeria.
²Department of Physics, Lagos State University, Ojo, Nigeria.
³Chemical Science Department, Redeemers University, Ede, Nigeria.
⁴Instrumentation Department, Kwara State University, Molete, Nigeria.

Dye-sensitized solar cells (DSSC) were fabricated with mango leaf dye extracts as natural dye sensitizers at pH value of 5.20 and temperature of 18.1°C. Methanol was used as dye-extracting solvent. DSSCs from dye extract of M. indica L. with KMnO₄ electrolyte had the highest photocurrent density of 1.3 mA/cm² and fill factor FF of 0.46 for the sun at its peak. Potassium permanganate (KMnO₄) had a photocurrent density of 1.3 mA/cm² and FF of 0.8 at sundown. Potassium Iodide (KI), Potassium Bromide (KBr) and Mercury Chloride (HgCl₂) electrolytes had 0.2 mA/cm², 0.08 mA/cm² and 0.02 mA/cm² photocurrent densities respectively. The fill factors of 0.09, 0.03 and 0.003 respectively for sun overhead while 0.08 mA/cm², 0.01 mA/cm² and 0.01 mA/cm² were the values of photocurrent densities respectively at sundown. The fill factors were 0.02, 0.0006 and 0.003 respectively at sundown. The maximum power P_max of the DSSCs were 0.5 mW/cm², 0.10 mW/cm², 0.01 mW/cm² and 0.012 mW/cm² respectively at 1300 h at 1630 h 0.9 mW/cm², 0.14 mW/cm², 0.005 mW/cm² and 0.0015 mW/cm² respectively.

Dye-Sensitized Solar Cells, Dye Sensitizer, Electrolytes, M. indica L., Photocurrent Density, Fill Factor

Abodunrin, T. , Obafemi, O. , Boyo, A. , Adebayo, T. and Jimoh, R. (2015) The Effect of Electrolyte on Dye Sensitized Solar Cells Using Natural Dye from Mango (M. indica L.) Leaf as Sensitizer. Advances in Materials Physics and Chemistry, 5, 205-213. doi: 10.4236/ampc.2015.56021.