ABSTRACT
The possibility of monitoring solar cell encapsulated into batteries is considered in present work. Our approach is based on LBIC-like measurement when the module is loaded in galvanostatic operation mode. Periodical testing illumination of a selected solar cell results in the signal output of the module that is proportional to the derivative dVm/di of the examined solar cell. This signal does not depend on the presence of other cells in the module. The dVm/di = f(i) functions can be obtained for all cells of the module by 2-D scanning and variation of the current. The integral of these functions gives the I-V characteristics, and the comparison of "dark" and "illuminated" dVm/di = f(i) functions determines the short circuit current of each tested cell of the module. The experimental verification was performed for a commercial encapsulated module.
