Figure 1

(a) Schematic showing a transparent luminescent solar concentrator (LSC) that selectively harvests near-infrared (NIR) light and emits deeper NIR while passing visible light. (b) Photographs of the TLSCs in front of the MSU Spartan helmet incorporating Cy7-CA, Cy7-NEt2-I and Cy7.5-NEt2-I luminophores (illuminated from behind the TLSC). Normalized absorption (blue) and emission spectra (red) of Cy7-CA (c) Cy7-NEt2-I (d) and Cy7.5-NEt2-I (e) in DCM solutions (solid lines) and polymer films (dashed lines). Permission to utilize the Spartan helmet logo is kindly provided by MSU.