Multiple dyes containing luminescent solar concentrators with enhanced absorption and efficiency

The fabrication and characterization of luminescent solar concentrators (LSCs) that contain multiple dyes are reported. LSCs were fabricated using one, two, or three dyes doped in a poly(methyl methacrylate) (PMMA) waveguide, and their performance was characterized. The three-dye LSC had a power conversion efficiency of 1.40% with an optical concentration ratio of 1.2. This efficiency is 16.7% greater than the maximum value of the single-dye LSCs. The external quantum efficiency of the three-dye LSC was greater than the single-dye LSCs.