A Steady-State Spectral Response and Quantum Efficiency Determination of a Bifacial Silicon Solar Cell under Monochromatic Illumination and Constant Magnetic Field Effects by Using the Photoconductivity Method

In this work, a theoretical approach of the effects of wavelength and applied magnetic field on the spectral response and quantum efficiency of a bifacial silicon solar cell, is made. For this, the continuity equation relative to the photogenerated minority carriers in the base of the solar cell, in steady-state, is used. The resolution of this equation allowed us to determine the minority carriers’ density according to the wavelength, the magnetic field and the junction recombination velocity. Based on the expression of minority carriers’ density, we obtained the photoconductivity, the photocurrent density from which the spectral response and the quantum efficiency have been established according to the excitation and phenomenological parameters of the solar cell. We found that, as the magnetic field increases, both the spectral response and quantum efficiency decrease; this situation shows a degradation of the intrinsic properties of the solar cell.