On the Quenching Mechanism of Ce, Tb Luminescence and Scintillation in Compositionally Disordered (Gd, Y, Yb)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub> Garnet Ceramics
Two series of (Gd, Y, Yb)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub> quintuple compounds with a garnet structure and solely doped with Ce and Tb were prepared in the form of ceramics by sintering in oxygen at 1600 °C for two hours and studie...
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MDPI AG
2023-05-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/10/6/615 |
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| author | Valery Dubov Daria Kuznetsova Irina Kamenskikh Ilia Komendo Georgii Malashkevich Andrei Ramanenka Vasili Retivov Yauheni Talochka Andrei Vasil’ev Mikhail Korzhik |
| author_facet | Valery Dubov Daria Kuznetsova Irina Kamenskikh Ilia Komendo Georgii Malashkevich Andrei Ramanenka Vasili Retivov Yauheni Talochka Andrei Vasil’ev Mikhail Korzhik |
| author_sort | Valery Dubov |
| collection | DOAJ |
| description | Two series of (Gd, Y, Yb)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub> quintuple compounds with a garnet structure and solely doped with Ce and Tb were prepared in the form of ceramics by sintering in oxygen at 1600 °C for two hours and studied for the interaction of activator ions with ytterbium ions entering the matrix. It was shown that the photoluminescence and scintillation of Ce<sup>3+</sup> ions are completely suppressed, predominantly by tunneling ionization through the charge transfer state (CTS) of the Ce<sup>4+</sup>-Yb<sup>2+</sup> ions. The photoluminescence of Tb<sup>3+</sup> ions is quenched in the presence of ytterbium, but not completely due to the poor resonance conditions of Tb<sup>3+</sup> intraconfiguration transitions and the CTS of the single Yb<sup>3+</sup> and the CTS of Ce<sup>4+</sup>-Yb<sup>2+</sup> ions. The scintillation in the visible range of both Ce<sup>3+</sup>- and Tb<sup>3+</sup>-doped samples is intensely quenched as well, which indicates strong competition from Yb<sup>3+</sup> ions to activators in interaction with the Gd substrate. |
| first_indexed | 2024-03-11T02:01:53Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-11T02:01:53Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-4cc40652342b4d5c99064d7bd099aa2c2023-11-18T12:07:18ZengMDPI AGPhotonics2304-67322023-05-0110661510.3390/photonics10060615On the Quenching Mechanism of Ce, Tb Luminescence and Scintillation in Compositionally Disordered (Gd, Y, Yb)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub> Garnet CeramicsValery Dubov0Daria Kuznetsova1Irina Kamenskikh2Ilia Komendo3Georgii Malashkevich4Andrei Ramanenka5Vasili Retivov6Yauheni Talochka7Andrei Vasil’ev8Mikhail Korzhik9National Research Center “Kurchatov Institute”, 123098 Moscow, RussiaNational Research Center “Kurchatov Institute”, 123098 Moscow, RussiaFaculty of Physics, Lomonosov Moscow State University, 119991 Moscow, RussiaNational Research Center “Kurchatov Institute”, 123098 Moscow, RussiaB.I. Stepanov Institute of Physics, National Academy of Science of Belarus, Nezalezhnastsi Av.68-2, 220072 Minsk, BelarusB.I. Stepanov Institute of Physics, National Academy of Science of Belarus, Nezalezhnastsi Av.68-2, 220072 Minsk, BelarusNational Research Center “Kurchatov Institute”, 123098 Moscow, RussiaInstitute for Nuclear Problems, Belarus State University, 11 Bobruiskaya, 220030 Minsk, BelarusSkobeltsyn Institute for Nuclear Physics, Lomonosov Moscow State University, 119991 Moscow, RussiaNational Research Center “Kurchatov Institute”, 123098 Moscow, RussiaTwo series of (Gd, Y, Yb)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub> quintuple compounds with a garnet structure and solely doped with Ce and Tb were prepared in the form of ceramics by sintering in oxygen at 1600 °C for two hours and studied for the interaction of activator ions with ytterbium ions entering the matrix. It was shown that the photoluminescence and scintillation of Ce<sup>3+</sup> ions are completely suppressed, predominantly by tunneling ionization through the charge transfer state (CTS) of the Ce<sup>4+</sup>-Yb<sup>2+</sup> ions. The photoluminescence of Tb<sup>3+</sup> ions is quenched in the presence of ytterbium, but not completely due to the poor resonance conditions of Tb<sup>3+</sup> intraconfiguration transitions and the CTS of the single Yb<sup>3+</sup> and the CTS of Ce<sup>4+</sup>-Yb<sup>2+</sup> ions. The scintillation in the visible range of both Ce<sup>3+</sup>- and Tb<sup>3+</sup>-doped samples is intensely quenched as well, which indicates strong competition from Yb<sup>3+</sup> ions to activators in interaction with the Gd substrate.https://www.mdpi.com/2304-6732/10/6/615ceramicsgarnetceriumterbiumluminescencescintillation |
| spellingShingle | Valery Dubov Daria Kuznetsova Irina Kamenskikh Ilia Komendo Georgii Malashkevich Andrei Ramanenka Vasili Retivov Yauheni Talochka Andrei Vasil’ev Mikhail Korzhik On the Quenching Mechanism of Ce, Tb Luminescence and Scintillation in Compositionally Disordered (Gd, Y, Yb)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub> Garnet Ceramics Photonics ceramics garnet cerium terbium luminescence scintillation |
| title | On the Quenching Mechanism of Ce, Tb Luminescence and Scintillation in Compositionally Disordered (Gd, Y, Yb)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub> Garnet Ceramics |
| title_full | On the Quenching Mechanism of Ce, Tb Luminescence and Scintillation in Compositionally Disordered (Gd, Y, Yb)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub> Garnet Ceramics |
| title_fullStr | On the Quenching Mechanism of Ce, Tb Luminescence and Scintillation in Compositionally Disordered (Gd, Y, Yb)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub> Garnet Ceramics |
| title_full_unstemmed | On the Quenching Mechanism of Ce, Tb Luminescence and Scintillation in Compositionally Disordered (Gd, Y, Yb)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub> Garnet Ceramics |
| title_short | On the Quenching Mechanism of Ce, Tb Luminescence and Scintillation in Compositionally Disordered (Gd, Y, Yb)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub> Garnet Ceramics |
| title_sort | on the quenching mechanism of ce tb luminescence and scintillation in compositionally disordered gd y yb sub 3 sub al sub 2 sub ga sub 3 sub o sub 12 sub garnet ceramics |
| topic | ceramics garnet cerium terbium luminescence scintillation |
| url | https://www.mdpi.com/2304-6732/10/6/615 |
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