研究目的
Investigating the application of polyoxometalate-ionic liquids (POM-ILs) as photosensitizers in dye-sensitized solar cells (DSSCs) to improve their performance.
研究成果
The study demonstrated that POM-ILs can significantly improve the performance of DSSCs compared to commercially available compounds. The electrodeposition process was found to be an excellent alternative to adsorption for improving overall efficiencies. [BPy]3[PMo12O40] and [P6,6,6,14]3[PMo12O40] were identified as the most promising compounds for DSSC approaches.
研究不足
The POM-ILs solutions showed light to no colour, and the consequent photoanodes showed no evident colour, which presents a limitation to the efficiencies obtained due to the crucial role of dye sensitization in the photocurrent produced by the cell.
1：Experimental Design and Method Selection:
The study involved the preparation and characterization of four POM-ILs based on phosphomolybdate anion and organic cations. The structural elucidation was performed using elemental analysis, ATR-FTIR, 1H and 31P NMR spectroscopies.
2：Sample Selection and Data Sources:
The POM-ILs were tested as photosensitizers by adsorption to the photoanode (TiO2 film) for different times (15 minutes to 17 hours).
3：List of Experimental Equipment and Materials:
The study utilized TiO2 films, POM-ILs, and electrodeposition techniques.
4：Experimental Procedures and Operational Workflow:
The POM-ILs were adsorbed onto TiO2 films for varying durations, and their performance in DSSCs was evaluated. Electrodeposition was also used as an alternative method for coating TiO2 films with POM-ILs.
5：Data Analysis Methods:
The performance of DSSCs was analyzed based on energy conversion efficiency, JSC, and VOC results.
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