The Use of Injection-Level Dependent Lifetime Measurements for Determining Solar Cell Parameters
The open-circuit voltage of a silicon solar cell is well known to be directly related to the effective recombination lifetime of the substrate as measured under 1-sun illumination. However, an important feature of the recombination lifetime is that it is dependent on the concentration of excess carriers present, often very strongly. This can result in a significantly lower recombination lifetime at maximum-power as compared to open-circuit conditions, and consequently cause a reduction in the...[Show more]
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