Numerical analysis of GaInP solar cells: toward advanced photovoltaic devices modeling

In this paper we will focus on the GaInP solar cell. By using a numerical analysis, we could calculate the External Quantum Efficiency and the performance of the device taking into account many material and structure parameters. By fitting the calculated data and the experimental ones we can determine the exact structure further confirmed by SEM measurements. This process will be very useful to validate the simulation input parameters, to explain the behavior of a device and then to optimize the layers structure according to the requirements of this top cell into the multi-junction solar cells. In our case we are simulating concentrator solar cells, this means they are much smaller than the normal ones.