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2016
Conference Paper
Titel

Improving the radiation hardness of space solar cells via nanophotonic light trapping

Abstract
We show that the radiation-hardness of space solar cells can be significantly improved by employing nanophotonic light trapping. Two light-trapping structures are investigated in this work. In the first, an array of Al nanoparticles is embedded within the anti-reflection coating of a GaInP/InGaAs/Ge solar cell. A combined experimental and simulation study shows that this structure is unlikely to lead to an improvement in radiation hardness. In the second, a diffractive structure is positioned between the middle cell and the bottom cell. Computational results, obtained using an experimentally validated electro-optical simulation tool, show that a properly designed light-trapping structure in this position can lead to a relative 10% improvement in the middle-cell photocurrent at end-of-life.
Author(s)
Mellor, A.
Hylton, N.P.
Wellens, C.
Thomas, T.
Al-Saleh, Y.
Giannini, V.
Braun, A.
Hauser, H.
Maier, S.A.
Ekins-Daukes, N.J.
Hauptwerk
IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016
Konferenz
Photovoltaic Specialists Conference (PVSC) 2016
Thumbnail Image
DOI
10.1109/PVSC.2016.7750298
Language
English
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Fraunhofer-Institut für Solare Energiesysteme ISE
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