Comparative Study of Eosin-Y and Rose Bengal Sensitized SnO2-ZnO Composite Electrode for Dye-Sensitized Solar Cell

A. N. Kawade,1,2,3

P. K. Bhujbal,3

A. T. Supekar,3

K. M. Sonawane,2*Email

H. M. Pathan,3

Shoyebmohamad F. Shaikh4

Abdullah A. Al-Kaitani4


1PDEA’s Annasaheb Waghire Arts, Science & Commerce College, Otur, Pune, India.

2DES’s Fergusson  College, Pune, India.

3Advanced Physics Laboratory, Department of Physics, Savitribai Phule Pune University, Pune, India.

4Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.


In the present study, Dye-Sensitized Solar Cells (DSSCs) were fabricated using SnO2 (Tin Oxide)-ZnO (Zinc Oxide) composite photoanodes. The mesoporous SnO2-ZnO composite photoanode was made by a doctor blade technique from SnO2 and ZnO nanostructures. The prepared films of SnO2-ZnO composite were characterized with UV-Visible spectroscopy to compare the band gap of composite material with pure SnO2 and pure ZnO. The prepared photoanodes were sensitized with Eosin-Y (EY) and Rose Bengal (RB) Photosensitizers. The photovoltaic performance of DSSC based on the SnO2-ZnO composite photoanodes was comparatively studied with EY and RB Photosensitizers. A photoconversion efficiency of about 0.09% and 0.17% were achieved for EY and RB sensitized DSSCs. RB sensitized DSSC shows the highest photoconversion efficiency compared to EY sensitized DSSC. Which is approximately 53% greater than the efficiency of RB sensitized SnO2-ZnO composite based DSSC.