Journal article

Light losses from scattering in luminescent solar concentrator waveguides

Robert D Breukers, Gerald J Smith, Hedley L Stirrat, Adam J Swanson, Trevor A Smith, Kenneth P Ghiggino, Sebastiampillai G Raymond, Nicola M Winch, David J Clarke, Andrew J Kay

APPLIED OPTICS | OPTICAL SOC AMER | Published : 2017

Abstract

The reductions in the transmission of emission originating from a fluorophore dissolved in a polymer matrix due to light scattering were compared in two forms of planar waveguides used as luminescent solar concentrators: a thin film of poly(methylmethacrylate) (PMMA) spin-coated on a glass plate and a solid PMMA plate of the same dimensions. The losses attributable to light scattering encountered in the waveguide consisting of the thin film of polymer coated on a glass plate were not detectable within experimental uncertainty, whereas the losses in the solid polymer plate were significant. The losses in the solid plate are interpreted as arising from light-scattering centers comprising minut..

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