L. C. Dinetta, G. Negley, M. H. Hannon, J. R. Cummings, J. B. Mcneely, Allen M. Barnett
{"title":"AlGaAs top solar cell for mechanical attachment in a multi-junction tandem concentrator solar cell stack","authors":"L. C. Dinetta, G. Negley, M. H. Hannon, J. R. Cummings, J. B. Mcneely, Allen M. Barnett","doi":"10.1109/PVSC.1990.111591","DOIUrl":null,"url":null,"abstract":"Free-standing, transparent, tunables bandgap Al/sub x/Ga/sub 1-x/As top solar cells have been fabricated for mechanical attachment in a four-terminal tandem stack solar cell. The device has 1.8 eV top solar cells with efficiencies of 18% (100X, AM0), which would yield stack efficiencies of 31% (100X, AM0) with a silicon bottom cell. When fully developed, the Al/sub x/Ga/sub 1-x/As/Si mechanically stacked two-junction solar cell concentrator system can provide efficiencies of 36% (AM0, 100X). Liquid-phase epitaxy (LPE) growth techniques have been used. This is the first demonstration of a free-standing wide-bandgap top cell technology which can be readily developed for commercial availability based on the Al-Ga-As mixed-crystal system.<<ETX>>","PeriodicalId":211778,"journal":{"name":"IEEE Conference on Photovoltaic Specialists","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1990-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Conference on Photovoltaic Specialists","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PVSC.1990.111591","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Free-standing, transparent, tunables bandgap Al/sub x/Ga/sub 1-x/As top solar cells have been fabricated for mechanical attachment in a four-terminal tandem stack solar cell. The device has 1.8 eV top solar cells with efficiencies of 18% (100X, AM0), which would yield stack efficiencies of 31% (100X, AM0) with a silicon bottom cell. When fully developed, the Al/sub x/Ga/sub 1-x/As/Si mechanically stacked two-junction solar cell concentrator system can provide efficiencies of 36% (AM0, 100X). Liquid-phase epitaxy (LPE) growth techniques have been used. This is the first demonstration of a free-standing wide-bandgap top cell technology which can be readily developed for commercial availability based on the Al-Ga-As mixed-crystal system.<>
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