Tackling self-absorption in luminescent solar concentrators with type-II colloidal quantum dots
Publication date
2013-04
Authors
Krumer, Zachar
Pera, Suzanne J.
Moes, Relinde
Zhao, Y
de Brouwer, Alexander F. P.
Groeneveld, Esther
van Sark, W.G.J.H.M.
Schropp, R.E.I.
de Mello Donegá, C.
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Document Type
Article
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Abstract
Luminescent solar concentrators are low cost photovoltaic devices, which reduce the amount of necessary semiconductor material per unit area of a solar collector by means of concentration. The device is comprised a thin plastic plate in which luminescent species (fluorophores) have been incorporated. The fluorophores absorb the solar light and radiatively re-emit part of the energy. Total internal reflection traps most of the emitted light inside the plate and wave-guides it to a narrow side facet with a solar cell attached, where conversion into electricity occurs. The efficiency of such devices is as yet rather low, due to several loss mechanisms, of which self-absorption is of high importance. This work demonstrates that type-II semiconductor hetero-nanocrystals may offer a solution to the self-absorption problem in luminescent solar concentrators. (C) 2013 Elsevier B.V. All rights reserved.
Keywords
Luminescent solar concentrators, Self-absorption, Semiconductor hetero-nanocrystals, Quantum dots, Solar cells, FLUORESCENT COLLECTORS, ENERGY CONVERSION, CDSE NANOCRYSTALS, EFFICIENCY, EMISSION, HETERONANOCRYSTALS, HETEROSTRUCTURES, PHOTOVOLTAICS, OPTIMIZATION, PERFORMANCE, Taverne, SDG 7 - Affordable and Clean Energy
Citation
Krumer, Z, Pera, S J, Moes, R, Zhao, Y, de Brouwer, A F P, Groeneveld, E, van Sark, W G J H M, Schropp, R E I & Donega, C D M 2013, 'Tackling self-absorption in luminescent solar concentrators with type-II colloidal quantum dots', Solar Energy Materials and Solar Cells, vol. 111, no. 2013, pp. 57-65. https://doi.org/10.1016/j.solmat.2012.12.028