Efficiency enhancement of solar cell: Fusion of texturisation and back contact Emitter-Wrap-Through modeling

Solar cell has an enormous developing capacity as kind of green renewable energy source. Nevertheless, accompanied by some losses such as light reflection loss, recombination loss, grid shadowing loss, and low carrier concentration, the energy conversion efficiency of a solar cell remains unsatisfactory. A lot of research work has been done and yet been continued in order to enhance the solar cell efficiency. Among them, surface texturisation is quite enough succeeded in reduction of reflectance through light trapping in the cell and thence higher light absorption. Again, Emitter-Wrap-Through back contact cell technology paves the way to reduce grid loss as well as double-sided carrier collection and therefore increases short circuit current. However, at present, Texturization and Emitter-Wrap-Through (EWT) technology are used individually. In this paper we promote a possible solar cell design by combining these two features along with a PC1D software simulation to enhance the efficiency of solar cell.