We are analyzing the absorption enhancement of an a-Si PV cell due to the presence of Ag nanoparticles embedded periodically within the cell. The resultant absorption graphs obtained exhibit significant oscillations at higher wavelengths. We previously asked for a solution to this on KX, and the solution provided was to place the source within the Si cell. However, we do not find this a feasible solution as it does not replicate the original conditions. We assumed that the problem was due to the coherence length of the incident radiation being larger than the cell thickness, and thus increased the thickness. However, the oscillations still exist, regardless of what we do. We would like them to be as non-existent as possible.
Here is the fsp file: plasmonic_in.fsp (268.7 KB)
Here is one of the obtained absorption curves: