Advances in the Performance of Inverted Metamorphic Multi-Junction Solar Cells
| Autor: | Sharps, P.R., Aiken, D., Boca, A., Cho, B., Chumney, D., Cornfeld, A., Je, S.-S., Lin, Y., Mackos, C.C., McCarty, J., Newman, F., Patel, P., Spann, J., Stan, M., Steinfeldt, J. |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: | |
| DOI: | 10.4229/27theupvsec2012-1bo.10.1 |
| Popis: | 27th European Photovoltaic Solar Energy Conference and Exhibition; 95-98 Inverted metamorphic multi-junction (IMM) solar cells have achieved the highest efficiency for space applications (NASA confirmed 33.9% for 1 sun, AM0), and nearly the highest efficiency for terrestrial high concentration applications (NREL confirmed 42.4% for 325x, ASTM G173 direct). Achieving higher efficiencies for space applications is mission enabling, allowing for larger payloads for the same sized solar arrays. Higher efficiency is the primary driver for cost reduction for power generation in terrestrial concentrator systems. The IMM approach allows for the addition of metamorphic junctions creating a device with a more optimal match to the incoming spectrum, thereby increasing conversion efficiency. The required removal of the growth substrate during processing allows for very thin devices. The thin devices have very high specific power, useful for space applications, and if attached to a heat sink have a reduced temperature operation in terrestrial concentrator applications. We report on the latest IMM cell developments, performance, and packaging. |
| Databáze: | OpenAIRE |
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