Low temperature photoluminescence of Cs2NaY1-xErxCl6 excited by synchrotron radiation
Photoluminescent spectra have been recorded for Cs2NaY 1-xErxCl6 at room temperature (RT) and 10 K using synchrotron radiation. Striking differences are observed between RT and 10 K emission spectra. First, unusual quenching of emission from a higher energy level (4G11/2) at RT leads to dominant vis...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Elsevier BV
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/5698 |
| _version_ | 1848744869347983360 |
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| author | Jia, Guohua Cheng, B. Duan, C. Tanner, P. |
| author_facet | Jia, Guohua Cheng, B. Duan, C. Tanner, P. |
| author_sort | Jia, Guohua |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Photoluminescent spectra have been recorded for Cs2NaY 1-xErxCl6 at room temperature (RT) and 10 K using synchrotron radiation. Striking differences are observed between RT and 10 K emission spectra. First, unusual quenching of emission from a higher energy level (4G11/2) at RT leads to dominant visible emission at 10 K from a lower one (4S3/2). Second, emission from 2G9/2 is not observed at RT but appears at 10 K. Third, the red emission from 4F9/2 is much weaker at 10 K. Cross-relaxation quenches emission from multiplets 4D 5/2 and 4F5/2 in Cs2NaErCl 6 whereas emission from the former is clearly observed in dilute Cs2NaYCl6:Er3+. Detailed assignments are provided and the cross-relaxation processes are described. © 2011 Elsevier B.V. All rights reserved. |
| first_indexed | 2025-11-14T06:08:19Z |
| format | Journal Article |
| id | curtin-20.500.11937-5698 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:08:19Z |
| publishDate | 2011 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-56982023-08-02T06:39:07Z Low temperature photoluminescence of Cs2NaY1-xErxCl6 excited by synchrotron radiation Jia, Guohua Cheng, B. Duan, C. Tanner, P. Photoluminescent spectra have been recorded for Cs2NaY 1-xErxCl6 at room temperature (RT) and 10 K using synchrotron radiation. Striking differences are observed between RT and 10 K emission spectra. First, unusual quenching of emission from a higher energy level (4G11/2) at RT leads to dominant visible emission at 10 K from a lower one (4S3/2). Second, emission from 2G9/2 is not observed at RT but appears at 10 K. Third, the red emission from 4F9/2 is much weaker at 10 K. Cross-relaxation quenches emission from multiplets 4D 5/2 and 4F5/2 in Cs2NaErCl 6 whereas emission from the former is clearly observed in dilute Cs2NaYCl6:Er3+. Detailed assignments are provided and the cross-relaxation processes are described. © 2011 Elsevier B.V. All rights reserved. 2011 Journal Article http://hdl.handle.net/20.500.11937/5698 10.1016/j.cplett.2011.09.033 Elsevier BV restricted |
| spellingShingle | Jia, Guohua Cheng, B. Duan, C. Tanner, P. Low temperature photoluminescence of Cs2NaY1-xErxCl6 excited by synchrotron radiation |
| title | Low temperature photoluminescence of Cs2NaY1-xErxCl6 excited by synchrotron radiation |
| title_full | Low temperature photoluminescence of Cs2NaY1-xErxCl6 excited by synchrotron radiation |
| title_fullStr | Low temperature photoluminescence of Cs2NaY1-xErxCl6 excited by synchrotron radiation |
| title_full_unstemmed | Low temperature photoluminescence of Cs2NaY1-xErxCl6 excited by synchrotron radiation |
| title_short | Low temperature photoluminescence of Cs2NaY1-xErxCl6 excited by synchrotron radiation |
| title_sort | low temperature photoluminescence of cs2nay1-xerxcl6 excited by synchrotron radiation |
| url | http://hdl.handle.net/20.500.11937/5698 |