Mechanically stacked tandem cells consisting of GaAs thin-film upper cells and CuInSe2 thin-film lower cells have been developed to meet the increasing power needs projected for future spacecraft. The authors report the fabrication of the first highly efficient lightweight GaAs/CuInSe2 tandem cell on a 2-mil thick substrate, update recent performance improvements in thin-film GaAs/CuInSe2 tandem cells, and discuss their application to space power systems. The efficiency of 4-cm2 cells has improved to 21.6% AM0, the highest ever reported for a thin-film photovoltaic cell. Lightweight 4-cm2 tandem cells have been successfully fabricated with efficiencies as high as 20.8%. These cells weighed about 180 mg without optimized substrate trimming. Radiation and operating temperature effects on GaAs/CuInSe2 tandem cells are also discussed, and an interconnect scheme to form a voltage-matched string is described.


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    Title :

    Lightweight (AlGaAs)GaAs/CuInSe2 tandem junction solar cells for space applications


    Additional title:

    Leichte (AlGaAs)GaAs/CuInSe2 Tandem-Solarzellen für Raumfahrtanwendungen


    Contributors:
    Kim, N.P. (author) / Stanbery, B.J. (author) / Burgess, R.M. (author) / Mickelsen, R.A. (author) / McClelland, R.W. (author) / King, B.D. (author) / Gale, R.P. (author)


    Publication date :

    1989


    Size :

    10 Seiten, 14 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Lightweight (AlGaAs)GaAs/CuInSe/sub 2/ tandem junction solar cells for space applications

    Kim, N.P. / Stanbery, B.J. / Burgess, R.M. et al. | IEEE | 1989


    Thin film tandem GaAs/CuInSe2 solar cells for space power applications

    Stanbery, B.J. / Avery, J.E. / Burgess, R.M. et al. | Tema Archive | 1987


    Electron Irradiated LPE Grown AlGaAs/GaAs Tandem Solar Cells

    Shvarts, M. Z. / Chosta, O. I. / Khvostikov, V. P. et al. | British Library Online Contents | 1998


    Electron Irradiated LPE Grown AlGaAs/GaAs Tandem Solar Cells

    Shvarts, M. Z. / Chosta, O. I. / Khvostikov, V. P. et al. | British Library Conference Proceedings | 1998


    Development of AlGaAs/GaAs solar cells with space qualifications

    Yoshida, S. / Matsuda, S. / Otoda, M. et al. | Tema Archive | 1984