| タイトル | Recent advancements in monolithic AlGaAs/GaAs solar cells for space applications |
| 本文（外部サイト） | http://hdl.handle.net/2060/19910020906 |
| 著者（英） | Ristow, M. Ladle; Werthen, J. G.; Virshup, G. F.; Klausmeier-Brown, M.; Wickham, K. R.; Kuryla, M. S.; Chung, B.-C. |
| 著者所属（英） | Varian Associates |
| 発行日 | 1991-08-01 |
| 言語 | eng |
| 内容記述 | High efficiency, two terminal, multijunction AlGaAs/GaAs solar cells were reproducibly made with areas of 0.5 sq cm. The multiple layers in the cells were grown by Organo Metallic Vapor Phase Epitaxy (OMVPE) on GaAs substrates in the n-p configuration. The upper AlGaAs cell has a bandgap of 1.93 eV and is connected in series to the lower GaAs cell (1.4 eV) via a metal interconnect deposited during post-growth processing. A prismatic coverglass is installed on top of the cell to reduce obscuration caused by the gridlines. The best 0.5 sq cm cell has a two terminal efficiency of 23.0 pct. at 1 sun, air mass zero (AM0) and 25 C. To date, over 300 of these cells were grown and processed for a manufacturing demonstration. Yield and efficiency data for this demonstration are presented. As a first step toward the goal of a 30 pct. efficient cell, a mechanical stack of the 0.5 sq cm cells described above, and InGaAsP (0.95 eV) solar cells was made. The best two terminal measurement to date yields an efficiency of 25.2 pct. AM0. This is the highest reported efficiency of any two terminal, 1 sun space solar cell. |
| NASA分類 | SPACECRAFT PROPULSION AND POWER |
| レポートNO | 91N30220 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/131221 |
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