In recent years, the production of renewable energy, particularly using solar photovoltaic (PV) technology, has increased significantly. Advances in alternative devices and materials to conventional silicon cells, such as perovskite, thin film, and organic PV, have been accompanied by growing interest in adjunct technologies that are able to enhance the performance of PV cells, or even just enable their use in non-standard situations. In the built environment, widespread integration of standard PV panels is challenging, as their bulk and superior performance under direct light limits their installation to rooftops. A negative perception by communities of the appearance of conventional PV panels also lingers. Luminescent solar concentrators (LSCs) are an adjunct PV technology that may help overcome these limitations. A conventional LSC is composed of a large, flat, usually square or rectangular waveguide slab, that is doped or coated with a luminescent dye (or luminophore), as illustrated in Figure .