That’s the reason for the vast versions of SPICE available now decades after the original was released, not all of which are as open or free as we might like. Qucs is a GPL circuit simulator.

Researchers from Canada have developed solar cells that boast a record-breaking open circuit voltage. The solar cell design features indium gallium phosphide (InGaP), indium gallium arsenide ...

Das Solar has achieved a world-record open-circuit voltage of 730 mV for an M10 n-type tunnel oxide passivated contact (TOPCon) solar cell, with a power conversion efficiency of 26.24% ...