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Electroluminescence Exposes Individual Performances in Multi-Junction Cells

: Hoheisel, R.; Rönsch, S.; Dimroth, F.; Bett, A.W.; Nesswetter, H.; Zimmermann, C.G.

Volltext urn:nbn:de:0011-n-2125783 (209 KByte PDF)
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Erstellt am: 7.9.2012

Compound Semiconductors 17 (2011), Nr.2, S.28-31
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer ISE ()
Materialien - Solarzellen und Technologie; III-V und Konzentrator-Photovoltaik; Alternative Photovoltaik-Technologien; III-V Epitaxie und Solarzellen; III – V: Epitaxie Solarzellen und Bauelemente

Conventional multi-junction cell measurements only yield the characteristics of the entire device. In stark contrast, a novel electroluminescence approach can probe far deeper, extracting the current-voltage curves for individual sub-cells that hold the key to optimising the overall conversion efficiency, say the technique s pioneers, Raymond Hoheisel, Sebastian Rönsch, Frank Dimroth and Andreas Bett from the Fraunhofer Institute for Solar Energy Systems and Helmut Nesswetter and Claus Zimmermann from EADS Astrium.