The behavior of a solar cell can be schematized by an equivalent electrical circuit.
in behavior ideal of the solar cell, the current source represents the generation of current carriers by the photoelectric effect and the diode the internal recombination of some of those carriers. But in one royal cell A series of losses will occur that we will represent using resistances.
- RYes: resistance due to the semiconductor material itself and the metallic contacts (Joule effect)
- Rp: leakage resistance due to imperfections in the pn junction and in the structure of the material itself and metallic short circuits
With all this, the equation that models the real behavior of the cell is:
