Analytical Model for the Performance of a Free-Space Luminescent Solar Concentrator

Conventional luminescent solar concentrators suffer from high losses due to the large path length inside the device. Our system reduces these losses by using the free-space to collimate the light. We have developed an analytical model for the performance of those free-space luminescent solar concentrators. Our model takes all loss mechanisms into account and outputs the angle and wavelength dependent emission. Using realistic material parameters, we calculate the intensity emitted by the free space concentrator to be 1.5 times higher than that of a perfect diffuse reflector for all emission angles below 19 degrees