Growth and spectroscopy of BaBrI crystals activated by Eu2+ ionsстатья
Статья опубликована в журнале из списка Web of Science и/или Scopus
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Авторы:
Rusakov A.I.,
Shalaev A.A.,
Shendrik R.Y.,
Myasnikova A.S.,
Subanakov A.K.
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Журнал:
AIP Conference Proceedings
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Том:
2069
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Год издания:
2019
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DOI:
10.1063/1.5089830
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Аннотация:
BaBrI crystals containing 0.01 to 8 mol. % of Eu2+ activator have been obtained. The photo- and X-ray luminescence spectra correspond to Eu2+ 5d - 4f characteristic transitions with a maximum at about 3 eV. The scintillation decay time is 400-500 ns (fast component) and 3700-5500 ns (slow component). It has been established that the decay time in BaBrI crystals depends on the activator concentration. In the absorption spectra of BaBrI: Eu2+ crystals, a double peak is observed associated with 4f7 - 4f65d1 transitions in Eu2+. On the edge of optical absorption, the band gap of 5.2 eV was estimated. We assume the resonant mechanism of energy transfer to the luminescence centers. © 2019 Author(s).
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Добавил в систему:
Шендрик Роман Юрьевич