Solar cell absolute spectral sensitivity measuring apparatus and method

摘要

In the solar cell absolute spectral sensitivity measuring apparatus and the method of the present invention, the solar light to be measured is sequentially irradiated with the plurality of first bias light irradiation energies different from each other by the control of the first light source unit, A plurality of short circuit currents at each of the first bias light irradiation energies are measured, and based on the measured plurality of short circuit currents, in order to obtain an absolute spectral sensitivity of the solar cell, first, a plurality of differential spectral sensitivities to be measured are calculated. A combination of a plurality of second bias light irradiation energies for measurement is required.