Understanding the Performance of Multijunction Solar Cells in Space—Paths Toward Lower Cost and Higher Throughput Solar Arrays

We combined light current-voltage, dark current voltage, quantum efficiency and electroluminescence at varying low temperatures to identify and quantify defects, current mismatch effects, saturation currents, and diode quality of each subcell. We attempt to provide a method for spectral mismatch correction for fill factor for each subcell as well as identify how defects, current mismatch and radiation will affect performance of multijunction solar cells ar low intensity low temperature, AM0 and AM1.5