Application of Erbium-Doped Up-Converters to Silicon Solar Cells

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2007
Authors
Strümpel, Claudia
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978-3-86628-201-8
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Konstanz : Hartung-Gorre
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Applikation erbium-dotierter Aufkonverter auf Silizium-Solarzellen
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Abstract
Within this thesis erbium-doped up-converters have been characterized and applied to silicon solar cells. An up-converter absorbs at least two low energy photons and converts them to one high energy photon and therefore, when applied to the rear of a bifacial solar cell, may lead to a spectral response beyond the absorption range of the solar cell. Within this thesis, this has been demonstrated using four different kinds of erbium doped host materials as up-converters. The host materials investigated were barium chloride, yttrium oxide, sodium yttrium fluoride and a commercial up-conversion powder (IRUCG), also consisting of sodium yttrium fluoride, but co-doped with ytterbium and erbium. Barium chloride and yttrium oxide based up-converters have been applied for the first time to solar cells.
Summary in another language
In der vorliegenden Arbeit wurden verschiedene Erbium-dotierte Aufkonverter auf Siliziumsolarzellen appliziert und charakterisiert. Aufkonversion ist die Emission eines hochenergetischen Photons infolge der Absorption mindestens zweier niedrigenergetischer Photonen und kann daher, in Form einer Schicht auf der Rückseite einer beidseitig lichtempfindlichen Solarzelle, zu einer spektralen Antwort in einem sonst von der Solarzelle nicht nutzbaren Wellenlängenbereich führen. In dieser Arbeit wurde dieser Effekt an vier verschiedenen Erbium-dotierten Wirtsmaterialien untersucht: Bariumchlorid, Yttriumoxid, Natriumyttriumfluorid und an dem kommerziellen Aufkonverter IRUCG, der aus mit Erbium und Ytterbium co-dotiertem Natriumyttriumfluorid besteht. Erbium-dotiertes Bariumchlorid und Yttriumoxid wurden erstmals auf Solarzellen appliziert.
Subject (DDC)
530 Physics
Keywords
Aufkonversion,beidseitig lichtempfindliche Solarzelle,Effizienzlimit,Natriumyttriumfluorid,Yttriumoxid,up-conversion,bifacial solar cell,efficiency limit,sodium yttrium fluoride,yttrium oxide
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ISO 690STRÜMPEL, Claudia, 2007. Application of Erbium-Doped Up-Converters to Silicon Solar Cells [Dissertation]. Konstanz: University of Konstanz. Konstanz : Hartung-Gorre. ISBN 978-3-86628-201-8
BibTex
@phdthesis{Strumpel2007Appli-9246,
  year={2007},
  publisher={Konstanz : Hartung-Gorre},
  title={Application of Erbium-Doped Up-Converters to Silicon Solar Cells},
  author={Strümpel, Claudia},
  address={Konstanz},
  school={Universität Konstanz}
}
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