To verify the code modifications made to pvTrace, simulated 𝜂 !"# values were benchmarked against experimentally determined 𝜂 !"# values for a series of LSC geometries, namely a square, cut circle, hexagon, and triangle (Figure ). These geometries were chosen as they had at least one flat edge, so that measurement of the edge emission was possible. Two different manufacturing methods were used: (i) laser cutting from bulk cast polymer slabs and (ii) 3Dprinting via fused deposition modelling (FDM).