Effect of acid treatment and dipping time on the performance of CdS quantum dot solar cells

Thottipalayam Subramaniyam Senthil; Natarajan Muthukumarasamy; Misook Kang

doi:10.1117/1.OE.52.7.075102

1 July 2013 Effect of acid treatment and dipping time on the performance of CdS quantum dot solar cells

Thottipalayam Subramaniyam Senthil, Natarajan Muthukumarasamy, Misook Kang

Author Affiliations +

Optical Engineering, Vol. 52, Issue 7, 075102 (July 2013). https://doi.org/10.1117/1.OE.52.7.075102

Abstract

Semiconductor quantum-dot-sensitized TiO ₂ thin-film solar cells have been assembled by incorporating CdS quantum dots into the TiO ₂ porous film. The influence of acid treatment on TiO ₂ electrode, dipping time, and the effect of electrolytes on the performance of solar cells have been investigated. Two types of solar cells have been fabricated, one using a liquid electrolyte and the other one using a quasi-solid-state polymer electrolyte. It has been found that quantum-dot-sensitized solar cells exhibits better photovoltaic performance when the TiO ₂ electrode was acid-treated. When the TiO ₂ electrode was acid-treated, the short-circuit current, open-circuit voltage, fill factor, efficiency, and even the amount of quantum dots absorbed by the TiO ₂ film was found to increase appreciably. The quantum dot solar cells fabricated using liquid electrolyte were observed to exhibit better efficiency than the quasi-solid-state polymer-electrolyte-based solar cells.

Citation Download Citation

Thottipalayam Subramaniyam Senthil, Natarajan Muthukumarasamy, and Misook Kang "Effect of acid treatment and dipping time on the performance of CdS quantum dot solar cells," Optical Engineering 52(7), 075102 (1 July 2013). https://doi.org/10.1117/1.OE.52.7.075102

Published: 1 July 2013

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