研究目的
Investigating the use of a composite of lampblack and printer toner powder as a low-cost counter electrode material for dye-sensitized solar cells (DSCs).
研究成果
The composite of lampblack and printer toner demonstrated good catalytic ability for the reduction of tri-iodide ions in DSCs, offering a low-cost alternative to platinum. Despite a slightly lower efficiency compared to platinum-based DSCs, the composite's performance was comparable, making it a viable option for reducing the fabrication cost of DSCs.
研究不足
The series resistance of the DSCs with counter electrodes based on the composite was higher than that of DSCs with platinum-based counter electrodes, which slightly reduced the fill factor and overall efficiency. Optimization of the lampblack and printer toner ratio in the composite could improve these parameters.
1：Experimental Design and Method Selection:
The study involved preparing a composite of lampblack from a traditional mustard oil lamp and printer toner in a 1:1 weight ratio for use as a counter electrode in DSCs. The structural composition of the lampblack was analyzed using X-ray diffraction (XRD), and the morphology was examined using scanning electron microscopy (SEM).
2：Sample Selection and Data Sources:
Lampblack was prepared from a mustard oil lamp, and printer toner was obtained from the local market. The composite was used to fabricate the counter electrode of DSCs.
3：List of Experimental Equipment and Materials:
X-ray powder diffractometer (D2 PHASER, Bruker), LEO 435VP SEM, Abet SunLite Solar Stimulator 11002, and various materials like mustard oil, printer toner, and FTO-glass substrates.
4：Experimental Procedures and Operational Workflow:
The composite was doctorbladed onto FTO-glass substrates to prepare the counter electrodes. The photovoltaic performance of the DSCs was tested under simulated sunlight.
5：Data Analysis Methods:
The photovoltaic parameters (Jsc, Voc, FF, and η) were calculated from the current density-voltage (J-V) curves obtained from the solar cell testing system.
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