The short-circuit current of silicon p+-N solar cell at room temperature is Isc ≈Iph = 100mA. The technological parameters of the cell are Area A = 4 cm2, ND=5*1016cm-3, μp=380cm2/V.s, Lp=10μm, and ideality factor n≈1.
a) Derive the equation for open circuit voltage, VOC and calculate VOC.
b)Calculate the maximum power that can be obtained from this cell. what load resistance RL is needed to extract this power.
c) How many cells, operating at maximum power, have to be connected in series to obtain a voltage of 12V? How many 12-V cells have to be connected in parallel so that the maximum power is 5.7W?