Temperature stability of contact systems for GaSb-based photovoltaic converters |
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| Authors: | V P Khvostikov S V Sorokina N S Potapovich F Yu Soldatenkov N Kh Timoshina |
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| Affiliation: | 1. Ioffe Physical-Technical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia
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| Abstract: | The thermally induced degradation (temperature T ≈ 200°C) of Cr-Au, Cr-Au-Ag-Au, Ti-Pt-Au, and Ti-Pt-Ag contact systems deposited onto the surface of p-GaSb by magnetron sputtering and resistive evaporation are studied. It is found that photovoltaic (PV) converters with a contact grid based on Ti-Pt-Ag are characterized by the maximum thermal stability. PV cells with gold-containing contacts based on Cr-Au and Ti-Pt-Au exhibit a high rate of degradation with increasing temperature, which may require a more effective heat removal system for their operation. |
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