研究目的
Investigating the dependence of the film photovoltaic converters efficiency on their operating temperature and comparing the physical mechanisms of temperature influence on output, diode and electronic parameters of photovoltaic converters.
研究成果
The study concluded that film photovoltaic converters based on cadmium telluride exhibit the least reduction in efficiency with the growth of the operating temperature, making them optimal for combined photovoltaic systems based on heat collectors. The temperature stability of their efficiency is ensured by the diode current density of the cut, which increases by 50% from 1.9·10-9 A to 2.7·10-9 A with the temperature rise from 20°C to 50°C.
研究不足
The study is limited to the analysis of film photovoltaic converters based on CdS/CdTe, CuInSe2, and amorphous silicon, and does not cover other types of photovoltaic materials. The experimental temperature range is from 0°C to 60°C, which may not cover all operational conditions.
1：Experimental Design and Method Selection:
The study involved measuring light current-voltage characteristics (CVC) at spectral irradiation closed to sunlight, using a LED illuminator for solar radiation reproduction.
2：Sample Selection and Data Sources:
Industrial samples of film PVC based on CdS/CdTe, CuInSe2, and amorphous silicon were selected.
3：List of Experimental Equipment and Materials:
A contact device (CD) with four separate cylindrical Fluor plastic heads equipped with metal probes was developed for non-destructive switching of test specimens.
4：Experimental Procedures and Operational Workflow:
Light specimens were measured at temperatures from 0°C to 60°C, and analytical processing of experimental light CVC was conducted to determine initial parameters and light CVC characteristics.
5：Data Analysis Methods:
The study analyzed the influence of working temperature on efficiency, short-circuit current density, idle voltage, and factor of filling the light-emitting diode.
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