Special Section on High and Low Concentrator Systems for Solar Electric Applications

Role of light scattering in the performance of fluorescent solar collectors

[+] Author Affiliations
Nazila Soleimani

University of Southampton, School of Engineering Sciences, Materials Research Group, Highfield, Southampton SO17 1BJ

Sebastian Knabe

Carl von Ossietzky University of Oldenburg, Institute of Physics, D-26111 Oldenburg, Germany

Gottfried H. Bauer

Carl von Ossietzky University of Oldenburg, Institute of Physics, D-26111 Oldenburg, Germany

Tom Markvart

University of Southampton, School of Engineering Sciences, Materials Research Group, Highfield, Southampton SO17 1BJ

Otto L. Muskens

University of Southampton, SEPnet and Department of Physics and Astronomy, Highfield, Southampton SO17 1BJ

J. Photon. Energy. 2(1), 021801 (Oct 08, 2012). doi:10.1117/1.JPE.2.021801
History: Received February 29, 2012; Revised July 2, 2012; Accepted July 17, 2012
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Abstract.  A fluorescent solar collector (FSC) is a waveguide device that can concentrate both diffuse and direct sunlight on to a solar cell. The electrical output of the device depends strongly on the photon fluxes that are absorbed, emitted, and trapped inside the FSC plate. For this reason, it is important to study the photon transport losses inside the collector. One of the losses in FSC to be investigated is scattering, which increases the probability of the escape cone losses. We determine the scattering contributions in FSC by using angle dependence of light internally reflected in the FSC. The cause of scattering in spin-coated polymethylmethacrylate on top of the glass collector is identified as roughness from the top surface, rather than bulk losses. This loss can be suppressed to less than 2% using an index-matching planarization layer.

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© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Nazila Soleimani ; Sebastian Knabe ; Gottfried H. Bauer ; Tom Markvart and Otto L. Muskens
"Role of light scattering in the performance of fluorescent solar collectors", J. Photon. Energy. 2(1), 021801 (Oct 08, 2012). ; http://dx.doi.org/10.1117/1.JPE.2.021801


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