The experimental results for several technical approaches aimed at achieving highly efficient solar cells for space-power applications are reported. Efficiencies of up to 24.5% (170X, AM0) and 21.7% (1X, AM0) have been achieved with homoepitaxial GaAs p/n cells. This one-sun AM0 efficiency value is believed to be the highest reported to date. Tandem solar cells utilizing GaAs-on-Ge structures have been fabricated and shown to have efficiencies up to 21.3% (1X, AM0), and a GaAs-on-Si cell at 15.2% (1X, AM0) is reported. Homoepitaxial n/p InP cells with an efficiency of 18.8% (1X, AM0) are also reported. The fabrication of heteroepitaxial InP solar cells with one-sun AM0 efficiency values of 9.4% (on GaAs) and 7.2% (on Si) is described.


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    Title :

    High-efficiency heteroepitaxial solar cells for space power applications


    Additional title:

    Heteroepitaxial-Sonnenzellen mit hohem Wirkungsgrad für die Raumfahrt


    Contributors:
    Vernon, S.M. (author) / Tobin, S.P. (author) / Keavney, C.J. (author) / Wojtczuk, S.J. (author)


    Publication date :

    1989


    Size :

    5 Seiten, 15 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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