Design of wide-gap fluoride heterostructures for deep ultraviolet optical devices

The design of fluoride-based optical devices for deep ultraviolet applications is discussed. Variations in the band-gap energy and band structure with respect to composition are investigated for Li(1−x)KxBa(1−y)MgyF3 perovskites. The band-gap energy, lattice constant, and band structure of perovskit...

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Bibliographic Details
Published in:Journal of applied physics 2004-12, Vol.96 (12), p.7655-7659
Main Authors: El Ouenzerfi, Riadh, Ono, Shingo, Quema, Alex, Goto, Masahiro, Sakai, Masahiro, Sarukura, Nobuhiko, Nishimatsu, Takeshi, Terakubo, Noriaki, Mizuseki, Hiroshi, Kawazoe, Yoshiyuki, Sato, Hiroki, Ehrentraut, Dirk, Yoshikawa, Akira, Fukuda, Tsuguo
Format: Article
Language:English
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Summary:The design of fluoride-based optical devices for deep ultraviolet applications is discussed. Variations in the band-gap energy and band structure with respect to composition are investigated for Li(1−x)KxBa(1−y)MgyF3 perovskites. The band-gap energy, lattice constant, and band structure of perovskitelike fluorides are estimated based on ab initio calculations within the local-density approximation. The lattice-matched double heterostructure with direct band-gap compounds (Li(1−x)KxBa(1−y)MgyF3 on either LiBaF3 or KMgF3 substrates) is promising for fabrication.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.1808474