研究目的
Investigating 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).
研究成果
The study concludes that the power conversion efficiency (PCE) of DSCs increases with the ascending ratio of the explored Pt area in the electrolyte medium and the photoanode area (REP). The highest PCE of 8.40% was achieved with a REP of 64/49. The findings suggest a relationship between fabrication cost and device efficiency, proposing a way for further development of efficient and large-scale DSCs.
研究不足
The study focuses on the effect of the explored Pt area in the electrolyte medium and the photoanode area ratio on DSCs performance, but does not explore other potential factors that could influence the efficiency of DSCs.
1：Experimental Design and Method Selection:
The study involved fabricating Pt counter electrodes with different explored areas (5x5 mm, 7x7 mm, and 8x8 mm) using a sputtering method and assembling them into DSCs with a photoanode area of 7x7 mm
2：Sample Selection and Data Sources:
The photoanodes were fabricated using the doctor-blade method with TiO2, and the DSCs were assembled with these photoanodes and the fabricated CEs.
3：List of Experimental Equipment and Materials:
Pt layers were sputtered on FTO glass substrates using DC-sputtering. The photoanodes were prepared using TiO2 paste and N719 dye solution.
4：Experimental Procedures and Operational Workflow:
The performance of the DSCs was evaluated through J-V measurements under 1 sun illumination, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS).
5：Data Analysis Methods:
The obtained spectra from EIS were fitted using Z-view software with reference to the proposed equivalent circuit.
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