Now, to evaluate the impact of unit solar cells on the final device, we have chosen to see the influence of r s, r sh and J ph after a 50% variation of their initial value.Īpplication 2: Serial resistance discrepancy In a rapid approach we can evaluate the effects of local defects at the scale of individual USC on global performance, such as local shunt (r sh), local bad electrical contact (r s) and local bad photon collection or conversion (J ph) Generally, especially for multicrystalline ingots, heterogeneous properties govern final solar cell performances. In the electrical model Figure 1, serial resistance rs is a lumped value that takes into account contact resistance on the emitter and the base, grid line con- tact and semiconductor resistivity. #HOW TO CALCULATE THE EFFICIENCY OF A SOLAR CELL IN PC1D SERIAL# This final value depends greatly on the process and also on possible degradation during the solar cell's lifetime.įigure 4. (a): U.S.C parameters (b) Solar cell made by four distributed homogeneous U.S.C: and (c) Final solar cell parameters. #HOW TO CALCULATE THE EFFICIENCY OF A SOLAR CELL IN PC1D SERIAL#.
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