Effects of molecular contamination on triple junction solar cells

David F. Hall; Dean C. Marvin

doi:10.1117/12.481645

11 September 2002 Effects of molecular contamination on triple junction solar cells

David F. Hall, Dean C. Marvin

Proceedings Volume 4774, Optical System Contamination: Effects, Measurements, and Control VII; (2002) https://doi.org/10.1117/12.481645
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

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.

Citation Download Citation

David F. Hall and Dean C. Marvin "Effects of molecular contamination on triple junction solar cells", Proc. SPIE 4774, Optical System Contamination: Effects, Measurements, and Control VII, (11 September 2002); https://doi.org/10.1117/12.481645

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