Light Management

Size- and structure-dependent efficiency enhancement for luminescent solar concentrators

[+] Author Affiliations
Chunhua Wang

University of California, School of Engineering, Merced, 5200 North Lake Road, Merced, California 95343

Roland Winston

University of California, School of Engineering, Merced, 5200 North Lake Road, Merced, California 95343

University of California, School of Natural Science, Merced, 5200 North Lake Road, Merced, California 95343

Weiya Zhang

University of California, School of Natural Science, Merced, 5200 North Lake Road, Merced, California 95343

Dave Pelka

Pelka & Associate Inc., 8315 Kenyon Avenue, Los Angeles, California 90045

Sue Carter

University of California, Santa Cruz, Physics Department, Santa Cruz, California 95064

J. Photon. Energy. 1(1), 015502 (January 28, 2011). doi:10.1117/1.3534864
History: Received August 18, 2010; Revised November 11, 2010; Accepted December 14, 2010; Published January 28, 2011; March 09, 2011
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Size- and structure-dependent efficiency enhancement methods are studied for luminescent solar concentrators (LSCs) fabricated by casting organic laser dyes into PMMA matrixes. The enhancement are achieved mainly by attaching a white diffuser with an airgap at the bottom of the LSC and adding refractive index matched optical gel between the LSC's edges and the attached photovoltaic cells. The size-dependent efficiency enhancement is studied for a single layer by changing the size up to 120 cm. The results show that the enhancement from the white diffuser drops and then tends to plateau at a certain size of LSC. This also applies to multilayer LSCs. Together with optical gel, the efficiency enhancement is higher for multilayer structures than that for single layers. We also demonstrate the optimal length for the design of LSCs due to reabsorption of dyes. These results could be applied to optimize the design of other LSCs.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation

Chunhua Wang ; Roland Winston ; Weiya Zhang ; Dave Pelka and Sue Carter
"Size- and structure-dependent efficiency enhancement for luminescent solar concentrators", J. Photon. Energy. 1(1), 015502 (January 28, 2011). ; http://dx.doi.org/10.1117/1.3534864


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