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A 1 cm2 solar cell consists of a p-type region containing 1018 cm-3 acceptors and an n-type region containing 1015 cm-3 donors. wp'= 0.1 m and wn'...

A 1 cm2 solar cell consists of a p-type region containing 1018 cm-3 acceptors and an n-type region containing 1015 cm-3 donors. wp'= 0.1 μm and wn’ >> Lp. Use μn = 1000 cm2/V-s and μp = 300cm2/V-s. The minority carrier lifetime is 10 μs. The diode is
illuminated with sunlight, yielding a photocurrent density of 30
mA/cm2.
a. Calculate the open circuit voltage and short-circuit
current of the solar cell.
b. Calculate the maximum power generated by the cell and
the corresponding voltage and current.
c. Calculate the fill factor of the solar cell.
d. Calculate the fill factor for the same cell when it is
illuminated by a concentrator so that the photocurrent
density equals 300 A/cm2

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