Two dimensional device simulation and performance optimization of n-type silicon solar cell structure using PC2D

To optimize this cell we have used PC2D which is a solar cell device simulator that models two-dimensional effects entirely within a Microsoft Excel spreadsheet. With an Al2O3/SiNx front side boron emitter passivation, the metallization parameters were optimized by the authors getting efficiency of 19.60%. If all the parameters have ideal values our optimization provided an efficiency of 20.05% for homogeneous emitter with sheet resistance of 75 Ω/□. Furthermore, the study of the emitter led to a new structure developed recently: the selective emitter of n-type solar cell achieving efficiency of 20.20% with sheet resistance of 50 Ω/□ under the contacts and 100 Ω/□, between contacts.