Direct versus indirect illumination of a prototype luminescent solar concentrator

M.G. Debije, V.A. Rajkumar

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30 Citations (Scopus)
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Abstract

The luminescent solar concentrator could find application as an alternative way of generating electricity from sunlight in urban settings by virtue of its aesthetic and performance qualities. In particular, it has long been stated that the device functions equally well in direct and diffuse light, especially useful in the built environment but with little verification of this statement. In this work, we demonstrate the validity of this claim by comparing the performance of the luminescent solar concentrator in outdoor conditions ranging from clear to cloudy. We offer the explanation of an altered illumination spectrum to account for the increased efficiency of the device in overcast conditions. We also show the effect of gluing cells to the lightguide edge and conjecture on the differing impact the gluing has under direct and indirect sunlight.
Original languageEnglish
Pages (from-to)334-340
JournalSolar Energy
Volume122
DOIs
Publication statusPublished - Dec 2015

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Solar concentrators
Gluing
Lighting
Electricity

Keywords

  • Luminescent solar concentrator
  • Indirect light
  • Photovoltaic
  • Fluorescence

Cite this

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Direct versus indirect illumination of a prototype luminescent solar concentrator. / Debije, M.G.; Rajkumar, V.A.

In: Solar Energy, Vol. 122, 12.2015, p. 334-340.

Research output: Contribution to journalArticleAcademicpeer-review

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AB - The luminescent solar concentrator could find application as an alternative way of generating electricity from sunlight in urban settings by virtue of its aesthetic and performance qualities. In particular, it has long been stated that the device functions equally well in direct and diffuse light, especially useful in the built environment but with little verification of this statement. In this work, we demonstrate the validity of this claim by comparing the performance of the luminescent solar concentrator in outdoor conditions ranging from clear to cloudy. We offer the explanation of an altered illumination spectrum to account for the increased efficiency of the device in overcast conditions. We also show the effect of gluing cells to the lightguide edge and conjecture on the differing impact the gluing has under direct and indirect sunlight.

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KW - Photovoltaic

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