Growth and spectroscopy of BaBrI crystals activated by Eu2+ ions
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)...
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| creator | Rusakov, A. I. Shalaev, A. A. Shendrik, R. Yu Myasnikova, A. S. Subanakov, A. K. |
| description | 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. |
| doi_str_mv | 10.1063/1.5089830 |
| format | Conference Proceeding |
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I. ; Shalaev, A. A. ; Shendrik, R. Yu ; Myasnikova, A. S. ; Subanakov, A. K.</creator><contributor>Martynovich, Evgeny Fedorovich ; Grigorichev, Konstantin Vadimovich ; Stepanov, Filipp Anatolyevich</contributor><creatorcontrib>Rusakov, A. I. ; Shalaev, A. A. ; Shendrik, R. Yu ; Myasnikova, A. S. ; Subanakov, A. K. ; Martynovich, Evgeny Fedorovich ; Grigorichev, Konstantin Vadimovich ; Stepanov, Filipp Anatolyevich</creatorcontrib><description>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.</description><identifier>ISSN: 0094-243X</identifier><identifier>EISSN: 1551-7616</identifier><identifier>DOI: 10.1063/1.5089830</identifier><identifier>CODEN: APCPCS</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Absorption spectra ; Crystals ; Decay rate ; Energy transfer ; Europium ; Luminescence ; Spectrum analysis</subject><ispartof>AIP Conference Proceedings, 2019, Vol.2069 (1)</ispartof><rights>Author(s)</rights><rights>2019 Author(s). 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K.</creatorcontrib><title>Growth and spectroscopy of BaBrI crystals activated by Eu2+ ions</title><title>AIP Conference Proceedings</title><description>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.</description><subject>Absorption spectra</subject><subject>Crystals</subject><subject>Decay rate</subject><subject>Energy transfer</subject><subject>Europium</subject><subject>Luminescence</subject><subject>Spectrum analysis</subject><issn>0094-243X</issn><issn>1551-7616</issn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2019</creationdate><recordtype>conference_proceeding</recordtype><recordid>eNp9kEFLwzAUx4MoWKcHv0HAm9KZ1yRNc9ONOQcDLwreQtok2KFLTdKNfnsrG3jz9A7v9_-_xw-hayBTICW9hyknlawoOUEZcA65KKE8RRkhkuUFo-_n6CLGDSGFFKLK0MMy-H36wHprcOxsk4KPje8G7B2e6VlY4SYMMenPiHWT2p1O1uB6wIu-uMOt38ZLdObGrb06zgl6e1q8zp_z9ctyNX9c5x1UNOUgwQrCtXNAa2u4da4kWlNmpQHtSsso5SC5MVILIgyrNXdNRa10prZ1SSfo5tDbBf_d25jUxvdhO55UBYiCMaASRur2QMWmTTqND6outF86DGrngwJ1tKM64_6DgahfnX8B-gOpIWaw</recordid><startdate>20190129</startdate><enddate>20190129</enddate><creator>Rusakov, A. 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K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p183t-191e705aff13bed5eff60aa34e9d1af6e4335195dd9a707d4ba5fc83e9fdbeb63</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Absorption spectra</topic><topic>Crystals</topic><topic>Decay rate</topic><topic>Energy transfer</topic><topic>Europium</topic><topic>Luminescence</topic><topic>Spectrum analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rusakov, A. I.</creatorcontrib><creatorcontrib>Shalaev, A. A.</creatorcontrib><creatorcontrib>Shendrik, R. Yu</creatorcontrib><creatorcontrib>Myasnikova, A. S.</creatorcontrib><creatorcontrib>Subanakov, A. 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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.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.5089830</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-243X |
| ispartof | AIP Conference Proceedings, 2019, Vol.2069 (1) |
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| language | eng |
| recordid | cdi_scitation_primary_10_1063_1_5089830 |
| source | AIP Journals Complete |
| subjects | Absorption spectra Crystals Decay rate Energy transfer Europium Luminescence Spectrum analysis |
| title | Growth and spectroscopy of BaBrI crystals activated by Eu2+ ions |
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