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Abstract
Annotation: From the presented curves, it is evident that the concentration coefficient has a significant impact on the short-circuit current value and, consequently, on the output power generated by the solar cell. However, as the concentration coefficient of solar radiation increases, the absolute rise in short-circuit current is accompanied by a decrease in the fill factor of the current–voltage characteristic due to the enhanced recombination of minority charge carriers.
As shown in Figure 2, the output electrical power exhibits a substantial increase up to a concentration factor of Kₛ = 80, after which saturation occurs, and further increases in the concentration coefficient result in only a minimal rise in generated power. A similar trend is observed in the dependence of the short-circuit current on Kₛ (Figure 1). Here as well, starting from Kₛ = 80, a decrease in the growth rate of Iₖ.ₓ. is observed; however, this change is less pronounced compared to the effect on output power.
References
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