Original Article
Balance between the explored Pt counter electrode in an electrolyte medium and the photoanode for highly efficient liquid-junction photovoltaic devices

https://doi.org/10.1016/j.jsamd.2020.03.002Get rights and content
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Highlights

  • The effect of the ratio of the explored Pt area in an electrolyte medium and the photoanode area on the efficiency has been investigated.

  • The highest efficiency of 8.40% is obtained for cells with a ratio of 64/49.

  • The relationship between fabrication cost and device efficiency is discussed.

  • This proposes a way for a further development of efficient and low-cost counter electrodes.

Abstract

This work investigates the effect of the ratio of the explored Pt area in the electrolyte medium and the photoanode area (REP) on the performance of dye-sensitized solar cells (DSCs). It is found that the power conversion efficiency of DSCs increases by the ascending REP. The highest power conversion efficiency, which was obtained for the cell with the REP of 64/49, was 8.40%. Furthermore, a relationship between the efficiency and fabrication cost is analyzed in terms of reducing or enhancing the surface area of CE compared to the photoanode's surface area. These findings may provide a way for the development of efficient and large-scale DSCs.

Keywords

Dye-sensitized solar cells
Photoanode
Counter electrode
Explored Pt area

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Peer review under responsibility of Vietnam National University, Hanoi.