solution

Using the equations for dark currents in an ideal Schottky barrier diode and a p-n junction diode given in the text calculate the dark current for an Al-n-Si Schottky barrier solar cell and a Si p-n junction solar cell. Given: φ_Bn = 0.71 V, N_D = 10¹⁶ cm^−3, N_A = 5 × 10¹⁸ cm^−3, L_n = 100 µ_m, L_p = 20 µ_m, i = 1.4 × 10¹⁰ cm^−3, Aj = 4 cm², µ_n = 1000 cm²(V·s), and µp = 100 cm2/(V·s). If the photocurrents generated in both cells are assumed the same (Iph = 140 mA), what are the open-circuit voltages for both cells?