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RESONANCE-SHIFTING LUMINESCENT SOLAR CONCENTRATORS

United States Patent Application

20140376118
A1
View the Complete Application at the US Patent & Trademark Office
An optical system and method to overcome luminescent solar concentrator inefficiencies by resonance-shifting, in which sharply directed emission from a bi-layer cavity into a glass substrate returns to interact with the cavity off-resonance at each subsequent reflection, significantly reducing reabsorption loss en route to the edges. In one embodiment, the system comprises a luminescent solar concentrator comprising a transparent substrate, a luminescent film having a variable thickness; and a low refractive index layer disposed between the transparent substrate and the luminescent film.
Giebink, Noel Christopher (Downers Grove, IL), Wiederrecht, Gary P. (Elmhurst, IL), Wasielewski, Michael R. (Glenview, IL)
UCHICAGO ARGONNE LLC (Chicago IL)
14/ 457,590
August 12, 2014
STATEMENT OF GOVERNMENT INTEREST [0002] The United States Government claims certain rights in this invention pursuant to Contract No. DE-AC02-06CH11357 between the U.S. Department of Energy and UChicago Argonne, LLC, representing Argonne National Laboratory.