New red phosphor: Ca₀.₆₅Eu₀.₃₅F₂.₃₅ single сrystal
The first observation of absorption, red-orange luminescence, and decay kinetics of Ca₀.₆₅Eu₀.₃₅F₂.₃₅ single crystal is reported. The emission spectrum of excited directly in absorption bands consists of narrow bands at -590, 614 and 690 nm caused by ⁵Dj → ⁷Fj transitions typical of Eu³+ ion. The sa...
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| Date: | 2004 |
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| Main Authors: | , , , , , , , |
| Format: | Article |
| Language: | English |
| Published: |
НТК «Інститут монокристалів» НАН України
2004
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| Series: | Functional Materials |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/139495 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | New red phosphor: Ca₀.₆₅Eu₀.₃₅F₂.₃₅ single сrystal / K. Shimamura, N. Shiran , A. Gektin , V. Voronova, V. Nesterkina , N. Ichinose, E. Villora, T. Shishido // Functional Materials. — 2004. — Т. 11, № 4. — С. 676-679. — Бібліогр.: 9 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | The first observation of absorption, red-orange luminescence, and decay kinetics of Ca₀.₆₅Eu₀.₃₅F₂.₃₅ single crystal is reported. The emission spectrum of excited directly in absorption bands consists of narrow bands at -590, 614 and 690 nm caused by ⁵Dj → ⁷Fj transitions typical of Eu³+ ion. The same luminescence was found under UV, X- and y-excitation. The optical parameters of x-ray irradiated crystal remain unchanged at dose increasing up to 10⁴ Gy. That is, the compound holds a high radiation damage threshold. It can be presumed that this multicomponent solid solution may be used as a converter of UV and ionizing radiation into visible photons with high quantum efficiency. |
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