Qualimetric method for assessing quantitative and qualitative parameters of a solar cell

The article considers the qualimetric method of evaluating a solar cell, which describes its main electrophysical characteristics and the processes that occur in it during the conversion of solar energy into electricity. The dependence of the photovoltaic characteristics of a solar cell on various parameters is analyzed. It is shown that an increase in temperature leads to a decrease in the main characteristics of a solar cell, in particular the efficiency, short-circuit current, fill factor and other indicators that characterize the current-voltage characteristic. This decrease occurs due to changes in the electrophysical properties of the materials from which solar cells are made, as well as due to the influence of temperature changes in the material. A method for calculating the main electrophysical parameters, such as short-circuit current and open-circuit voltage, has been developed, which takes into account the detailed structure of the materials used to manufacture solar cells, which increases the accuracy of calculations of the output power and efficiency, and also increases the stability of the current-voltage characteristics of solar cells in real operating conditions. It is emphasized that an important aspect is the analysis of the impact of changes in lighting conditions, which have a significant effect on the conversion of solar energy. The models show how changes in the intensity and spectrum of lighting can change the behavior of a solar cell, in particular, affect the current and voltage under variable lighting conditions during the day or in conditions of unstable solar radiation. It is shown that existing approaches to modeling solar cells require further improvement, in particular, taking into account the structure of materials, temperature and lighting conditions, which will increase the accuracy of calculations and the stability of solar cell operation in real conditions.