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Efficient light trapping in a fluorescence solar collector by 3D photonic crystal

Knabe, Sebastian, Soleimani, Nazila, Markvart, Tomas and Bauer, Gottfried Heinrich (2010) Efficient light trapping in a fluorescence solar collector by 3D photonic crystal Physica Status Solidi (RRL) Rapid Research Letters (doi:10.1002/pssr.201004047).

Record type: Article


The escape of photons from a fluorescence collector is substantially reduced by the addition of a 3D photonic crystal which is geometrically designed for the emission wavelengths of the collector. We analyze angle dependent spectral transmission and reflection of the opal and prove the blocking effect by recording the angle dependence of the spectral fluorescence from the collector with and without the opal. By comparison of both photon fluxes a reduction of the emission in the appropriate ranges of wavelength and angle by a factor >10 is observed. For photovoltaic applications an increase in the internal photon density of the collector and likewise in the fluorescence photon flux fed to a solar cell can be expected, which might be overcompensated by the non-negligible reflection of the opal.

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Published date: 16 April 2010
Keywords: solar cells, spectral fluorescence, photonic crystal, angular dependence
Organisations: Engineering Mats & Surface Engineerg Gp


Local EPrints ID: 146149
ISSN: 1862-6254
PURE UUID: 169619e6-245f-4b8b-adc4-3b91d949df97

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Date deposited: 22 Apr 2010 10:12
Last modified: 18 Jul 2017 23:04

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Author: Sebastian Knabe
Author: Nazila Soleimani
Author: Tomas Markvart
Author: Gottfried Heinrich Bauer

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