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  • Title: Effect on the output of a luminescent solar concentrator on application of organic wavelength-selective mirrors.
    Author: Debije MG, Van MP, Verbunt PP, Kastelijn MJ, van der Blom RH, Broer DJ, Bastiaansen CW.
    Journal: Appl Opt; 2010 Feb 01; 49(4):745-51. PubMed ID: 20119029.
    Abstract:
    To reduce surface loss in luminescent solar concentrators (LSCs), we systematically apply organic wavelength-selective mirrors, chiral nematic (cholesteric) liquid crystals, onto the LSCs with an air gap and determine their effect on waveguide output. The highest output is achieved using a scattering background and cholesteric mirror with a reflection band significantly redshifted (approximately 150 nm) from the emission peak of the fluorescent dye. The use of an air gap results in light bending away from the waveguide surface normal and, consequently, a redshift of the cholesteric mirrors is required. Up to 35% more dye-emitted light energy exits the waveguide edge after application of the cholesteric, and an increase in absolute edge power of 12% was found for a waveguide using a separate scatterer.
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