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Proceedings Paper

Effects of molecular contamination on triple junction solar cells
Author(s): David F. Hall; Dean C. Marvin
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Paper Abstract

Space borne high efficiency triple junction solar cells are calculated to be about twice as sensitive to degradation from deposition of films of molecular species (similar to those typically outgassed by spacecraft materials) than are lower efficiency silicon cells. This is a consequence of the facts that 1) sub-cells of multijunction cells are connected in series, so that one of them limits the current through the stack, 2) the current in each sub-cell is lower in multijunction cells than in single junction cells, and 3) the absorptance of the molecular films increases rapidly as wavelength is decreased, effectively concentrating its effect in one sub-cell.

Paper Details

Date Published: 11 September 2002
PDF: 6 pages
Proc. SPIE 4774, Optical System Contamination: Effects, Measurements, and Control VII, (11 September 2002); doi: 10.1117/12.481645
Show Author Affiliations
David F. Hall, The Aerospace Corp. (United States)
Dean C. Marvin, The Aerospace Corp. (United States)

Published in SPIE Proceedings Vol. 4774:
Optical System Contamination: Effects, Measurements, and Control VII
Philip T. C. Chen; O. Manuel Uy, Editor(s)

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