研究目的
Investigating the performance and stability of a 7-cells dye sensitized solar module interconnected in Z-type series under both laboratory and outdoor testing conditions.
研究成果
The fabricated DSSC module demonstrated photoconversion efficiencies of 1.086% and 1.176% under laboratory and outdoor testing conditions, respectively. However, stability issues were observed, with performance degrading over time, highlighting the need for further research on materials and fabrication techniques to improve module applicability.
研究不足
The study identified stability as a major challenge, with module performance degrading by approximately 40% after each subsequent testing. This degradation was attributed to ineffective module sealing leading to electrolyte leakage and uncontrolled storage conditions affecting humidity and temperature.
1:Experimental Design and Method Selection:
The study involved the fabrication of a DSSC module with a sandwich structure, using TiO2 working electrode and Pt counter electrode on a conductive substrate. The module was designed with seven active cells interconnected in Z-type series to produce high voltage.
2:Sample Selection and Data Sources:
FTO glass was used as the conductive substrate, with TiO2 paste deposited via screen printing method.
3:List of Experimental Equipment and Materials:
Equipment included a sun simulator for laboratory testing, a digital multimeter for outdoor testing, and materials such as TiO2 paste, FTO glass, and N907 dye.
4:Experimental Procedures and Operational Workflow:
The module was tested under 500 W/m2 illumination in the laboratory and under direct sunlight outdoors. Stability was monitored over three different testing times.
5:Data Analysis Methods:
Photovoltaic parameters such as short circuit current density (Jsc), open circuit voltage (Voc), and photoconversion efficiency (η) were measured and compared.
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