Enhanced red fluorescence in Sr 2Si 1-xGe xO 4:Eu 3+ phosphors by the substitution of Si by Ge for white light emitting diodes
Eu 3-doped Sr 2Si 1-xGe xO 4 (x=0-1) phosphors have been prepared by the high temperature solid-state reaction method. The luminescent properties of these phosphors were investigat...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Pergamon
2012
|
| Online Access: | http://hdl.handle.net/20.500.11937/37280 |
| _version_ | 1848755003713388544 |
|---|---|
| author | Huang, L. Xu, S. Guo, M. Wang, C. Hua, Y. Zhao, S. Deng, D. Wang, H. Jia, Guohua |
| author_facet | Huang, L. Xu, S. Guo, M. Wang, C. Hua, Y. Zhao, S. Deng, D. Wang, H. Jia, Guohua |
| author_sort | Huang, L. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Eu 3-doped Sr 2Si 1-xGe xO 4 (x=0-1) phosphors have been prepared by the high temperature solid-state reaction method. The luminescent properties of these phosphors were investigated. Red fluorescence of Eu 3 is enhanced gradually in the samples with increasing substitution of Si by Ge upon the excitation of 393 nm light. The intensity is increased by 50% with full substitution of Si by Ge. These results are originated from the structural changes and the phonon energy reduction in the samples due to the substitution of Si by Ge. The CIE chromaticity coordinates of the phosphors vary slightly around (0.62, 0.37) and all are in the red color region. The results indicate that these phosphors could be promising red phosphors for white light emitting diodes. © 2012 Elsevier Ltd. |
| first_indexed | 2025-11-14T08:49:24Z |
| format | Journal Article |
| id | curtin-20.500.11937-37280 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:49:24Z |
| publishDate | 2012 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-372802017-09-13T13:38:13Z Enhanced red fluorescence in Sr 2Si 1-xGe xO 4:Eu 3+ phosphors by the substitution of Si by Ge for white light emitting diodes Huang, L. Xu, S. Guo, M. Wang, C. Hua, Y. Zhao, S. Deng, D. Wang, H. Jia, Guohua Eu 3-doped Sr 2Si 1-xGe xO 4 (x=0-1) phosphors have been prepared by the high temperature solid-state reaction method. The luminescent properties of these phosphors were investigated. Red fluorescence of Eu 3 is enhanced gradually in the samples with increasing substitution of Si by Ge upon the excitation of 393 nm light. The intensity is increased by 50% with full substitution of Si by Ge. These results are originated from the structural changes and the phonon energy reduction in the samples due to the substitution of Si by Ge. The CIE chromaticity coordinates of the phosphors vary slightly around (0.62, 0.37) and all are in the red color region. The results indicate that these phosphors could be promising red phosphors for white light emitting diodes. © 2012 Elsevier Ltd. 2012 Journal Article http://hdl.handle.net/20.500.11937/37280 10.1016/j.jpcs.2012.02.014 Pergamon restricted |
| spellingShingle | Huang, L. Xu, S. Guo, M. Wang, C. Hua, Y. Zhao, S. Deng, D. Wang, H. Jia, Guohua Enhanced red fluorescence in Sr 2Si 1-xGe xO 4:Eu 3+ phosphors by the substitution of Si by Ge for white light emitting diodes |
| title | Enhanced red fluorescence in Sr 2Si 1-xGe xO 4:Eu 3+ phosphors by the substitution of Si by Ge for white light emitting diodes |
| title_full | Enhanced red fluorescence in Sr 2Si 1-xGe xO 4:Eu 3+ phosphors by the substitution of Si by Ge for white light emitting diodes |
| title_fullStr | Enhanced red fluorescence in Sr 2Si 1-xGe xO 4:Eu 3+ phosphors by the substitution of Si by Ge for white light emitting diodes |
| title_full_unstemmed | Enhanced red fluorescence in Sr 2Si 1-xGe xO 4:Eu 3+ phosphors by the substitution of Si by Ge for white light emitting diodes |
| title_short | Enhanced red fluorescence in Sr 2Si 1-xGe xO 4:Eu 3+ phosphors by the substitution of Si by Ge for white light emitting diodes |
| title_sort | enhanced red fluorescence in sr 2si 1-xge xo 4:eu 3+ phosphors by the substitution of si by ge for white light emitting diodes |
| url | http://hdl.handle.net/20.500.11937/37280 |