EVALUATION OF PARAMETERS FOR ANODIC POLARIZATION CURVE FROM THE EXPERIMENTALLY MEASURED U-I DEPENDENCE FOR AN ELECTROCHEMICAL PHOTOVOLTAIC REGENERATIVE SOLAR-CELL

The cell voltage for an electrochemical photovoltaic regenerative sola r cell with current leads located on opposite sides of a cell unit was measured for different values of the light intensity, 77-1360 W m(-2) . The measured cell voltage was corrected for the voltage losses in th e conductive glass and in the electrolyte. An empirical relation for a nodic polarisation curve with three parameters, namely the limiting cu rrent density, the formal exchange current density and open-circuit po tential vs. light intensity was formulated. The evaluation of these pa rameters is based on the chemical engineering description of a model c ell. This description enables the transfer of the data to large module s for outdoor applications. (C) 1998 Elsevier Science B.V. All rights reserved.