This paper describes a lightweight, radiation-hard, high-performance, ultra-thin silicon solar cell that incorporates light trapping and a cover glass as an integral part of the device. The manufacturing feasibility of high specific power thin silicon solar cells has been demonstrated experimentally and with a model. Light-trapping structures have been fabricated and the light trapping demonstrated experimentally. The authors' design uses a micro-machined, grooved back surface to increase the optical path length by a factor of 20. This silicon solar cell will be highly tolerant to radiation because the base width is less than 25 microns making it insensitive to reduction in minority-carrier lifetime. Since the silicon is bonded without silicone adhesives, this solar cell will also be insensitive to UV degradation. These solar cells are designed as a form, fit, and function replacement for existing state of the art silicon solar cells with the effect of simultaneously increasing specific power, power/area, and power supply life. Using a 3-mil thick cover glass and a 0.3 g/cm 2 supporting Al honeycomb, a specific power for the solar cell plus cover glass and honeycomb of 80.2 W/Kg is projected.


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    Title :

    Direct glass bonded high specific power silicon solar cells for space applications


    Additional title:

    Direkt glasgebundene Silizium-Solarzellen hoher spezifischer Leistung für Weltraumanwendungen


    Contributors:
    DiNetta, L.C. (author) / Rand, J.A. (author) / Cummings, J.R. (author) / Lampo, S.M. (author) / Shreve, K.P. (author) / Barnett, A.M. (author) / Trumble, T.M. (author)


    Publication date :

    1993


    Size :

    5 Seiten, 5 Bilder, 4 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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