研究目的
Investigating the influence of backsheet materials on potential-induced degradation in n-type crystalline-silicon photovoltaic cell modules.
研究成果
The use of aluminum backsheets reduces PID effects in n-type crystalline-silicon photovoltaic cell modules, suggesting a potential low-cost measure to mitigate PID.
研究不足
The study was conducted in a dry environment, which may not fully represent real-world conditions where humidity can vary. The mechanism behind the reduced PID effects with aluminum backsheets is not fully understood.
1：Experimental Design and Method Selection:
The study involved fabricating PV cell modules with different backsheet materials and subjecting them to PID tests under controlled conditions.
2：Sample Selection and Data Sources:
Silicon heterojunction PV cell modules and rear-emitter n-type c-Si PV cell modules were used.
3：List of Experimental Equipment and Materials:
Aluminum backsheets composed of PET/aluminum/PET and typical backsheets were used.
4：Experimental Procedures and Operational Workflow:
PID tests were performed by applying a negative bias in a dry environment (<2% relative humidity).
5：Data Analysis Methods:
Current density–voltage (J–V) measurements were performed under 1-sun illumination and in dark before and after the PID tests.
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