Abstract:
A method for determining the imbalance coefficient of photogenerated currents of multijunction photoconverters by analyzing their IV characteristics is proposed. The method is applied to a dual-junction GaAs/GaAs laser radiation photocon- verter optimized for a wavelength of 850 nm. To demonstrate the method, the characteristics were obtained for the spectral composition of incident radiation AM0 (the space spectrum of the sun), in which the photoconverter operated in the imbalance mode of photogenerated currents. Application of the method showed that the imbalance value in this case is $\kappa$ = 1.8.