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We investigated the transport and photovoltaic properties of Cu(In 1-x Ga x )Se 2 (CIGS) thin-film solar cells. The shunt-current-eliminated diode current could be obtained from the current–voltage characteristics by subtracting the parasitic shunt leakage current from the total current. The temperature dependence of the open-circuit voltage, extracted from the shunt-eliminated...
Using experimental measurements of the open-circuit voltage and the short-circuit current density at different temperatures, for a solar cell, we investigate numerically the band gap evolution with temperature for the semiconductor constituting the concerned device. The application of the approach in the case of silicon semiconductor gives satisfying results compared to previous works.
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