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A DSSC Electrolyte Preparation Method Considering Light Path and Light Absorption
Jianjun Yang1, Jiaxuan Liu2, Yaxin Li2
1College of Electron and Information, University of Electronic Science and Technology of China Zhongshan Institute, Zhongshan 528402, China.
Micromachines
|November 11, 2022
Summary
Researchers optimized dye-sensitized solar cells (DSSC) by adjusting electrolyte concentration. The best performance was achieved with 0.048 M iodine, enhancing photoelectric conversion for efficient solar energy capture.
Area of Science:
- Materials Science
- Renewable Energy
- Electrochemistry
Background:
- Electrolytes are crucial for dye-sensitized solar cells (DSSC) performance.
- Optimizing electrolyte formulation is key to enhancing DSSC efficiency.
- External photoanode structures offer potential for improved solar energy conversion.
Purpose of the Study:
- To investigate the effect of electrolyte formulation on a novel external photoanode DSSC.
- To determine the optimal iodine concentration for maximizing photoelectric conversion.
- To understand the relationship between electrolyte properties and DSSC performance.
Main Methods:
- Configured iodine-based electrolytes with varying concentrations.
- Assembled dye-sensitized solar cells using a titanium electrode and external photoanode structure.
- Measured photoelectric conversion efficiency, open circuit voltage, short circuit current, and fill factor.
Main Results:
- The optimal iodine concentration for the external photoanode DSSC was found to be 0.048 M.
- Solar cells with 0.048 M iodine exhibited the best photoelectric conversion.
- Achieved an open circuit voltage of 0.71 V, short circuit current of 8.87 mA, and fill factor of 57%.
Conclusions:
- Electrolyte formulation significantly impacts DSSC performance in external photoanode designs.
- An iodine concentration of 0.048 M is optimal for this specific DSSC configuration.
- Further research into electrolyte optimization can lead to more efficient solar energy harvesting devices.
