On Calculating the Current-Voltage Characteristic of Multi-Diode Models for Organic Solar Cells
This work offers a practical computational improvement for researchers modeling organic solar cells with S-shaped anomalies, but it is an incremental contribution.
The paper provides an alternative formulation for calculating the current-voltage characteristic of multi-diode models for organic solar cells, avoiding numerical overflow and suitable for implementation in various programming languages.
We provide an alternative formulation of the exact calculation of the current-voltage characteristic of solar cells which have been modeled with a lumped parameters equivalent circuit with one or two diodes. Such models, for instance, are suitable for describing organic solar cells whose current-voltage characteristic curve has an inflection point, also known as an S-shaped anomaly. Our formulation avoids the risk of numerical overflow in the calculation. It is suitable for implementation in Fortran, C or on micro-controllers.