Light source evaluation device and solar cell evaluation device

Abstract

With a light source evaluation deviceaccording to the present invention and a solar cell evaluation deviceemploying the same, a dependency P (λ, Ib) for each wavelength λ of a short-circuit current Ib generated by white bias light of a measurement target solar cell, which is pre-measured at each of a plurality (i) of irradiance levels, is regarded as a spectral responsivity Pi (λ) at each irradiance level, and a value for adjusting a light quantity of an illumination light sourcethat illuminates the solar cellis computed using a spectral responsivity Ps (λ), which is computed using the spectral responsivity Pi (λ), a pre-supplied spectral irradiance S (λ) of reference sunlight, and a pre-measured spectral irradiance L (λ) of the illumination light source. Therefore the light source evaluation devicehaving this configuration and the solar cell evaluation deviceemploying the same can accurately adjust the light quantity of the illumination light sourcewhen evaluating the solar cellof which spectral responsivity changes depending on the light quantity.