Crystal Growth, Luminescence and Scintillation Characterizations of Cs<sub>2</sub>KLaCl<sub>6</sub>:Ce and Cs<sub>2</sub>KCeCl<sub>6</sub>
Elpasolite halides scintillation crystals have been proven to be very important materials for X-ray and γ-ray detector applications. The crystals of Cs<sub>2</sub>KLaCl<sub>6</sub>:4% Ce (CKLC) and Cs<sub>2</sub>KCeCl<sub>6</sub> (CKCC) belong to novel...
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MDPI AG
2021-06-01
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| Series: | Crystals |
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| author | Haoyu Wang Jianhui Xiong Man Li Jufeng Geng Shangke Pan Jianguo Pan |
| author_facet | Haoyu Wang Jianhui Xiong Man Li Jufeng Geng Shangke Pan Jianguo Pan |
| author_sort | Haoyu Wang |
| collection | DOAJ |
| description | Elpasolite halides scintillation crystals have been proven to be very important materials for X-ray and γ-ray detector applications. The crystals of Cs<sub>2</sub>KLaCl<sub>6</sub>:4% Ce (CKLC) and Cs<sub>2</sub>KCeCl<sub>6</sub> (CKCC) belong to novel scintillation of the Chloro-elpasolite crystal family. In this paper, the crystal growth of CKLC and CKCC crystals using the vertical Bridgman techniques were reported. The PXRD patterns showing both crystals have a cubic crystal structure. Both crystals have similar photoluminescence excitation and emission spectra, the fluorescence decay time of CKLC and CKCC crystals were about 49.7 and 33.8 ns. The energy resolution under the excitation of 662 keV γ-rays from a <sup>137</sup>Cs source were found to be 6.6% and 5.2% (FWHM), respectively. The scintillation decay times of CKLC crystal were τ<sub>1</sub> = 127 ns (33%) and τ<sub>2</sub> = 1617 ns (67%), while that of CKCC crystal were τ<sub>1</sub> = 2.86 ns (5%) and τ<sub>2</sub> = 81 ns (95%). |
| first_indexed | 2024-03-10T10:35:55Z |
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| id | doaj.art-3245287dc2fd4ebda46b1fe57bd837c9 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T10:35:55Z |
| publishDate | 2021-06-01 |
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| series | Crystals |
| spelling | doaj.art-3245287dc2fd4ebda46b1fe57bd837c92023-11-21T23:17:48ZengMDPI AGCrystals2073-43522021-06-0111665310.3390/cryst11060653Crystal Growth, Luminescence and Scintillation Characterizations of Cs<sub>2</sub>KLaCl<sub>6</sub>:Ce and Cs<sub>2</sub>KCeCl<sub>6</sub>Haoyu Wang0Jianhui Xiong1Man Li2Jufeng Geng3Shangke Pan4Jianguo Pan5State Key Base of Functional Material & Its Preparation Science, Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Institute of Materials Science &Chemical Engineering, Ningbo University, Ningbo 315211, ChinaState Key Base of Functional Material & Its Preparation Science, Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Institute of Materials Science &Chemical Engineering, Ningbo University, Ningbo 315211, ChinaState Key Base of Functional Material & Its Preparation Science, Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Institute of Materials Science &Chemical Engineering, Ningbo University, Ningbo 315211, ChinaState Key Base of Functional Material & Its Preparation Science, Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Institute of Materials Science &Chemical Engineering, Ningbo University, Ningbo 315211, ChinaState Key Base of Functional Material & Its Preparation Science, Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Institute of Materials Science &Chemical Engineering, Ningbo University, Ningbo 315211, ChinaState Key Base of Functional Material & Its Preparation Science, Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Institute of Materials Science &Chemical Engineering, Ningbo University, Ningbo 315211, ChinaElpasolite halides scintillation crystals have been proven to be very important materials for X-ray and γ-ray detector applications. The crystals of Cs<sub>2</sub>KLaCl<sub>6</sub>:4% Ce (CKLC) and Cs<sub>2</sub>KCeCl<sub>6</sub> (CKCC) belong to novel scintillation of the Chloro-elpasolite crystal family. In this paper, the crystal growth of CKLC and CKCC crystals using the vertical Bridgman techniques were reported. The PXRD patterns showing both crystals have a cubic crystal structure. Both crystals have similar photoluminescence excitation and emission spectra, the fluorescence decay time of CKLC and CKCC crystals were about 49.7 and 33.8 ns. The energy resolution under the excitation of 662 keV γ-rays from a <sup>137</sup>Cs source were found to be 6.6% and 5.2% (FWHM), respectively. The scintillation decay times of CKLC crystal were τ<sub>1</sub> = 127 ns (33%) and τ<sub>2</sub> = 1617 ns (67%), while that of CKCC crystal were τ<sub>1</sub> = 2.86 ns (5%) and τ<sub>2</sub> = 81 ns (95%).https://www.mdpi.com/2073-4352/11/6/653elpasoliteBridgman techniquephotoluminescencescintillator materials |
| spellingShingle | Haoyu Wang Jianhui Xiong Man Li Jufeng Geng Shangke Pan Jianguo Pan Crystal Growth, Luminescence and Scintillation Characterizations of Cs<sub>2</sub>KLaCl<sub>6</sub>:Ce and Cs<sub>2</sub>KCeCl<sub>6</sub> Crystals elpasolite Bridgman technique photoluminescence scintillator materials |
| title | Crystal Growth, Luminescence and Scintillation Characterizations of Cs<sub>2</sub>KLaCl<sub>6</sub>:Ce and Cs<sub>2</sub>KCeCl<sub>6</sub> |
| title_full | Crystal Growth, Luminescence and Scintillation Characterizations of Cs<sub>2</sub>KLaCl<sub>6</sub>:Ce and Cs<sub>2</sub>KCeCl<sub>6</sub> |
| title_fullStr | Crystal Growth, Luminescence and Scintillation Characterizations of Cs<sub>2</sub>KLaCl<sub>6</sub>:Ce and Cs<sub>2</sub>KCeCl<sub>6</sub> |
| title_full_unstemmed | Crystal Growth, Luminescence and Scintillation Characterizations of Cs<sub>2</sub>KLaCl<sub>6</sub>:Ce and Cs<sub>2</sub>KCeCl<sub>6</sub> |
| title_short | Crystal Growth, Luminescence and Scintillation Characterizations of Cs<sub>2</sub>KLaCl<sub>6</sub>:Ce and Cs<sub>2</sub>KCeCl<sub>6</sub> |
| title_sort | crystal growth luminescence and scintillation characterizations of cs sub 2 sub klacl sub 6 sub ce and cs sub 2 sub kcecl sub 6 sub |
| topic | elpasolite Bridgman technique photoluminescence scintillator materials |
| url | https://www.mdpi.com/2073-4352/11/6/653 |
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