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Proceedings Paper

High-flux characterization of ultra-efficient commercial 1 mm2 multi-junction solar cells
Author(s): Omer Korech; Baruch Hirsch; Eugene A. Katz; Jeffrey M. Gordon
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Paper Abstract

We present an experimental characterization study of high-efficiency ultra-small multi-junction concentrator solar cells. Particular emphasis is placed on the sensitivity of photovoltaic performance to the intensity and distribution of the concentrated sunlight delivered to the cell. This type of information is important in the design and optimization of the most recent generations of high-concentration photovoltaic systems. Miniaturizing the solar cell can give rise to an increase in the concentration value at which cell efficiency peaks, facilitates passive heat rejection and permits the use of all-glass optics. However, few measurements have been published for ultra-small cells. We report and analyze extensive measurements, up to approximately 5000 suns, on the 1.0 mm2 active region within the busbars of such commercial concentrator solar cells.

Paper Details

Date Published: 11 September 2007
PDF: 6 pages
Proc. SPIE 6649, High and Low Concentration for Solar Electric Applications II, 664907 (11 September 2007); doi: 10.1117/12.733015
Show Author Affiliations
Omer Korech, Ben-Gurion Univ. of the Negev (Israel)
Baruch Hirsch, Ben-Gurion Univ. of the Negev (Israel)
Eugene A. Katz, Ben-Gurion Univ. of the Negev (Israel)
Jeffrey M. Gordon, Ben-Gurion Univ. of the Negev (Israel)

Published in SPIE Proceedings Vol. 6649:
High and Low Concentration for Solar Electric Applications II
Martha Symko-Davies, Editor(s)

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