1. Calculate the filling factor of a photovoltaic cellwhose dimensions are 15 cm per side, and a thickness of 200 µm ofwhich 99% correspond to the “p†type absorbent layer and wherethere is also a amount of 13500 electrons. The thickness of thespace loading region junction is 200 nm.
The cell is subjected to standard test conditions, which producesevery second a generation of electron-hollow pairs of 2.0x10¹⹠cmâ»Â³and which translates into an increase in its density of 4.0x10¹³cmâ»Â³. The efficiency of the cell is measured at 20%.
Consider that the cell is in thermal equilibrium (300K), itsprohibited band is 1.12 eV and that the mobility coefficients are1360 cm² / Vs for electrons and 450 cm² / Vs for holes.
