Mock a I-V characteristic of a solar cell?
You have specified two data points only, so I'm assuming that these are the only two parameters you want to vary.
Start with a basic diode, since the curve follows that of a diode. In the schematic below, the diode is D1. Its forward voltage defines Voc.
 





simulate this circuit &ndash; Schematic created using CircuitLab
The short-circuit current is simulated with two PNP transistors, forming a current source that feeds the diode. With no load, diode D1 consumes all the current, generating an open-circuit voltage of Voc. A load of zero ohms (short circuit) diverts all the current from the current source, producing a load current of Isc.
In this example schematic, Isc is determined by the value of R1: Isc~0.64/R1
Out of Q1's collector, about 6.4 mA flows. Isc=6.5mA. Solar cell output terminals are labelled "Out +" and "Out -".
While crude, this could be a starting point to develop a more accurate model.
For a 5v cell, with short-circuit current of 217uA, this more versatile model allows piece-wise curve fitting by adjusting resistors R3-R11. As before, short circuit current is set by adjusting R1:







simulate this circuit