Luminescence of Ca2LiSiO4F: Ce3+, Tb 3+ phosphors
Ce3+, Tb3+ singly-doped and co-doped Ca 2LiSiO4F phosphors have been synthesized through conventional solid-state reaction. Their luminescence properties are studied. Under UV excitation, Ce3+ singly-doped Ca2LiSiO 4F phosphor emit blue light (460 nm), while Tb3+ singly-doped phosphor presents yello...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Published: |
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/32769 |
| _version_ | 1848753755414069248 |
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| author | Huang, L. Guo, M. Zhao, S. Deng, D. Wang, H. Hua, Y. Jia, Guohua Xu, S. |
| author_facet | Huang, L. Guo, M. Zhao, S. Deng, D. Wang, H. Hua, Y. Jia, Guohua Xu, S. |
| author_sort | Huang, L. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Ce3+, Tb3+ singly-doped and co-doped Ca 2LiSiO4F phosphors have been synthesized through conventional solid-state reaction. Their luminescence properties are studied. Under UV excitation, Ce3+ singly-doped Ca2LiSiO 4F phosphor emit blue light (460 nm), while Tb3+ singly-doped phosphor presents yellowish green color with emission peaks at 414, 437, 486, 543, 588, and 620 nm. The excitation spectra of Ce3+ and Tb3+ co-doped Ca2LiSiO4F monitored at 543 nm show a strong broad excitation band in the UV region with a maximum at 362 nm. Excited at 370 nm, Ce3+ and Tb3+ co-doped Ca 2LiSiO4F phosphor presents bluish white color with the emission peaks at 460, 486, 543, 588, and 620 nm. The energy transfer from Ce3+ to Tb3+ occurs in the co-doped Ca 2LiSiO4F phosphors and is a resonance-type energy transfer due to the spectral overlap between the 460 nm emission of Ce3+ and the excitation spectra monitored at 543 nm of Tb3+. The decay curves of 460 emission from Ce3+ in the co-doped phosphors and the calculated lifetime results confirm the energy transfer. The results indicate that these phosphors have potential as phosphor candidates used for white LEDs pumped by UV chips. © 2012 The Electrochemical Society. |
| first_indexed | 2025-11-14T08:29:33Z |
| format | Journal Article |
| id | curtin-20.500.11937-32769 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:29:33Z |
| publishDate | 2013 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-327692023-08-02T06:39:08Z Luminescence of Ca2LiSiO4F: Ce3+, Tb 3+ phosphors Huang, L. Guo, M. Zhao, S. Deng, D. Wang, H. Hua, Y. Jia, Guohua Xu, S. Ce3+, Tb3+ singly-doped and co-doped Ca 2LiSiO4F phosphors have been synthesized through conventional solid-state reaction. Their luminescence properties are studied. Under UV excitation, Ce3+ singly-doped Ca2LiSiO 4F phosphor emit blue light (460 nm), while Tb3+ singly-doped phosphor presents yellowish green color with emission peaks at 414, 437, 486, 543, 588, and 620 nm. The excitation spectra of Ce3+ and Tb3+ co-doped Ca2LiSiO4F monitored at 543 nm show a strong broad excitation band in the UV region with a maximum at 362 nm. Excited at 370 nm, Ce3+ and Tb3+ co-doped Ca 2LiSiO4F phosphor presents bluish white color with the emission peaks at 460, 486, 543, 588, and 620 nm. The energy transfer from Ce3+ to Tb3+ occurs in the co-doped Ca 2LiSiO4F phosphors and is a resonance-type energy transfer due to the spectral overlap between the 460 nm emission of Ce3+ and the excitation spectra monitored at 543 nm of Tb3+. The decay curves of 460 emission from Ce3+ in the co-doped phosphors and the calculated lifetime results confirm the energy transfer. The results indicate that these phosphors have potential as phosphor candidates used for white LEDs pumped by UV chips. © 2012 The Electrochemical Society. 2013 Journal Article http://hdl.handle.net/20.500.11937/32769 10.1149/2.005302jss restricted |
| spellingShingle | Huang, L. Guo, M. Zhao, S. Deng, D. Wang, H. Hua, Y. Jia, Guohua Xu, S. Luminescence of Ca2LiSiO4F: Ce3+, Tb 3+ phosphors |
| title | Luminescence of Ca2LiSiO4F: Ce3+, Tb 3+ phosphors |
| title_full | Luminescence of Ca2LiSiO4F: Ce3+, Tb 3+ phosphors |
| title_fullStr | Luminescence of Ca2LiSiO4F: Ce3+, Tb 3+ phosphors |
| title_full_unstemmed | Luminescence of Ca2LiSiO4F: Ce3+, Tb 3+ phosphors |
| title_short | Luminescence of Ca2LiSiO4F: Ce3+, Tb 3+ phosphors |
| title_sort | luminescence of ca2lisio4f: ce3+, tb 3+ phosphors |
| url | http://hdl.handle.net/20.500.11937/32769 |