Thin film luminescent solar concentrators fabricated for indoor applications

The luminescent solar concentrators are considered a promising photovoltaic solution to improve the energy efficiency of building structures. The main role of these devices is to provide a novel route for harnessing solar radiation with designs in the form of semi-transparent glazing systems that could be used for building-integrated photovoltaic system or interior furniture components. Herein, we reported the fabrication and characterization of thin-film LSC devices formed with different lightguides containing Eosin Y, Safranin O dyes and the two-dye mixture. Under indoor illumination condition, the two-dye mixture LSC has a power conversion efficiency of 0.22%, which is greater than that of the single-dye LSCs. Moreover, the dependency of external solar parameters on incident light power are investigated. The data indicate that the dependency is best described with the twodye mixture. Ultimately, this study might guide the studies to expand the use of the two-dye mixture thin film LSC devices for indoor applications.