Procedure for Automated Measurement and Calculation of the Electrophysical Parameters of Solar Cells

We described the procedures for automated measurement and calculation of the electrophysical parameters of solar cells on the basis of the IBM PC, a solar radiation simulator, V721A digital voltmeters, and a programcontrolled potentiometer which ensure the programmed assignment of the load resistance in the range 0.002–15,000 and measurement of the light voltampere characteristics of the solar cells, a shortcircuit current, and the opencircuit voltage and also calculated the basic parameters of the solar cells, such as the efficiency, the fullfactor of the voltampere characteristics, optimum and maximum power, optimum load resistance, series and shunt resistance, and the matching factor for the ideal and experimental voltampere characteristic of the solar cells. The error in the measurement and calculation of the solar cell parameters does not exceed 0.2%.