Advances in Dilute Nitride Multi-Junction Solar Cells for Space Power Applications
| Autor: | Sathya Chary, Ferran Suarez, Ting Liu, Ewelina N. Lucow, Radek Roucka, T. Bilir, Jordan R. Lang, L. Zhang, Sabeur Siala, E. Pickett, I. Aeby, Arsen Sukiasyan |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
lcsh:GE1-350
Materials science business.industry Nanotechnology 02 engineering and technology Nitride Quantum dot solar cell 021001 nanoscience & nanotechnology 01 natural sciences Solar cell research law.invention 010309 optics Monocrystalline silicon Solar cell efficiency law Photovoltaics 0103 physical sciences Solar cell Optoelectronics Plasmonic solar cell 0210 nano-technology business lcsh:Environmental sciences |
| Zdroj: | E3S Web of Conferences, Vol 16, p 03006 (2017) |
| ISSN: | 2267-1242 |
| Popis: | A sub-cell with bandgap of around 1 eV is required to improve the efficiency of multi-junction solar cells beyond what is possible with legacy triple-junction architectures [1]. Solar Junction Corporation has been focused since 2007 on the development and commercialization of dilute nitride materials to be used as the 1eV sub-cell in a fully lattice matched multijunction solar cell. Initial focus on the terrestrial concentrating photovoltaics (CPV) market led to Solar Junction Corp.’s achievement of multiple world records in multi-junction solar cell efficiency with its triplejunction cells on GaAs [2], [3]. These solar cells have been available as commercial products since 2010. Solar Junction Corp. has leveraged its high-quality, manufacturable dilute nitride material to develop and introduce an entirely new class of space solar cells capable of reaching over 33% AM0 conversion efficiency in a four-junction (4J) configuration lattice matched to active Ge substrates, with a clear line of sight to 36% AM0 efficiency in five- or six-junction devices that can be manufactured more cost-effectively than devices relying on metamorphic technologies. In this paper, we review the latest performance and qualification results of Solar Junction Corp.’s lattice matched 4J-on-Ge space solar cells and CIC (Cell- Interconnect-Coverglass) products incorporating GaInNAsSb dilute nitride material. We also report on the production readiness of these advanced space solar cells manufactured using an optimized hybrid Molecular Beam Epitaxy (MBE) / Metal Organic Vapor Phase Epitaxy (MOVPE) growth process. |
| Databáze: | OpenAIRE |
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