GenPro4 Optical Model for Solar Cell Simulation and Its Application to Multijunction Solar Cells
Rudi Santbergen (TU Delft - Electrical Engineering, Mathematics and Computer Science)
Tomomi Meguro (Kaneka Corporation)
Takashi Suezaki (Kaneka Corporation)
Gensuke Koizumi (Kaneka Corporation)
Kenji Yamamoto (Kaneka Corporation)
Miro Zeman (TU Delft - Electrical Engineering, Mathematics and Computer Science)
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Abstract
We present a new version of our optical model for solar cell simulation: GenPro4. Its working principles are briefly explained. The model is suitable for quickly and accurately simulating a wide range of wafer-based and thin-film solar cells. Especially adjusting layer thicknesses to match the currents in multijunction devices can be done with a minimum of computational cost. To illustrate this, a triple junction thin-film silicon solar cell is simulated. The simulation results show very good agreement with external quantum efficiency measurements. The application of an MgF2 antireflective coating or an antireflective foil with pyramid texture is considered. Their effects on the implied photocurrents of top, middle, and bottom cells are investigated in detail.