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Research Papers

I-V Performance and Stability Study of Dyes for Luminescent Plate Concentrators

[+] Author and Article Information
R. Kinderman

 Energy Research Centre of The Netherlands (ECN), P.O. Box 1, 1755 ZG Petten, The Netherlandskinderman@ecn.nl

L. H. Slooff, A. R. Burgers, N. J. Bakker

 Energy Research Centre of The Netherlands (ECN), P.O. Box 1, 1755 ZG Petten, The Netherlands

A. Büchtemann, R. Danz

 Fraunhofer-Institute for Applied Polymer Research, Geiselbergstr. 69, D-14476 Golm, Germany

J. A. van Roosmalen

 Energy Research Centre of The Netherlands (ECN), P.O. Box 1, 1755 Petten, The Netherlands

J. Sol. Energy Eng. 129(3), 277-282 (Apr 27, 2006) (6 pages) doi:10.1115/1.2737469 History: Received November 11, 2005; Revised April 27, 2006

In this paper, both the performance and stability of luminescent flat plate concentrator (LFPC) plates in combination with mc-Si photovoltaic cells are studied. It is shown that the electrical current of a silicon solar cell attached to the luminescent plate is improved by a factor 1.5 using a LFPC containing a single dye. It is also shown that most of the dyes are not stable in the polymer plates that are currently used. Screening of the stability of several other dyes indicates that the stability is strongly dependent on the type of dye and the polymer matrix, e.g., additives or the monomer residues.

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Copyright © 2007 by American Society of Mechanical Engineers
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Figures

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Figure 1

Schematic 3D view of a luminescent concentrator. Light is incident from the top. The light is absorbed by a luminescent dye. The luminescence from the dye is emitted in a randomly direction. Part of the emission falls within the escape cone (determined by the angel (a)) and is leaving the luminescent concentrator at the side (1). The other part of the luminescence is guided to the Si cell by total internal reflection (2). The sidewalls of the plate are indicated with right (Ri), front (Fr), and rear (Re).

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Figure 2

Examples of the luminescent flat plate concentrators (LFPC) as used

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Figure 3

Influence of mirrored sides on the normalized current density for a 5×10cm2 S13 and Macrolex Fluorescent Red doped Plexit plates. Also given is a schematic top view of the LFPC indicating the assignment of the different sides.

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Figure 4

Normalized Jsc for plates without mirrors as a function of the LFPC absorbance for S13 and Macrolex Fluorescent Red doped Plexit plates with dimensions of 5×10cm2 and 5×5cm2

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Figure 5

Aging of S13 and Macrolex Rluorescence Red G in Plexit 55 plates

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Figure 6

Aging of dyes in P(MMA/HEMA)/Plexit plates: (a) dyes in P(MMA/HEMA) matrix and (b) the dyes in Plexit 55

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Figure 7

(a) Aging of dyes in PMMA and (b) aging of dyes in Paraloid B72 coatings

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Figure 8

IR absorption of MMA-monomer and unpolymerized Plexit 55 (left) and polymerized Plexit 55 (right)

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Figure 9

Relative decrease of the IR absorption from CC bonds in Plexit 55 after temperature treatment of Plexit 55

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