A Computationally Efficient Multidiode Model for Optimizing the Front Grid of Multijunction Solar Cells under Concentration

Figure 1

Flow diagram of the computation algorithm. First, all relevant parameters such as contact spacing and operation conditions are fed into an optical simulation. The resulting short circuit current density and additional information on the series resistance obtained from the other parameters of the cell are then used as input for the multidiode model which computes the efficiency. This process is repeated for the whole parameter space to determine optimum efficiency and operating conditions.