The effect of oxygen-containing anions on luminescent properties of CsI
It has been found that from the series of oxygen-containing impurities CO₃²⁻, SO₄²⁻, HCO₃–, OH–, IO₃–, NO₃–, NO₂–, CNO–, BO₂– only the bivalent ions stimulate an intensive blue luminescence in CsI crystals at UV- or gamma-excitation. The blue luminescence intensity is higher in CsI(CO₃) than in CsI(...
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| Datum: | 2000 |
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| Hauptverfasser: | , , , , , , |
| Format: | Artikel |
| Sprache: | English |
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Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2000
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| Schriftenreihe: | Semiconductor Physics Quantum Electronics & Optoelectronics |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/121092 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | The effect of oxygen-containing anions on luminescent properties of CsI / L.N. Shpilinskaya, B.G. Zaslavsky, L.V. Kovaleva, S.I. Vasetsky, A.M. Kudin, A.I. Mitichkin, T.A. Charkina // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2000. — Т. 3, № 2. — С. 178-180. — Бібліогр.: 6 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | It has been found that from the series of oxygen-containing impurities CO₃²⁻, SO₄²⁻, HCO₃–, OH–, IO₃–, NO₃–, NO₂–, CNO–, BO₂– only the bivalent ions stimulate an intensive blue luminescence in CsI crystals at UV- or gamma-excitation. The blue luminescence intensity is higher in CsI(CO₃) than in CsI(SO₄) crystals. The nature of blue luminescence components has been considered and two types of centres have been suggested: the impurity type – CO₃²⁻-Va⁺ (395 nm) and the structural one – Va⁺-Vc⁻ (435 nm). A method of deep purification of the melt from oxygen-containing anions during the growth process has been proposed. |
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