Luminescence Behavior of GdVO<sub>4</sub>: Tb Nanocrystals in Silica Glass-Ceramics
Glass ceramics with GdVO<sub>4</sub>: Tb nanocrystals impregnated in the highly transparent silica glass were prepared by the porous glass and sintering process and confirmed by XRD, Raman spectrum, and TEM. Spectral analysis shows that there are multifarious energy transfer processes in...
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MDPI AG
2020-05-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/10/5/396 |
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| author | Shuai Han Yiting Tao Ying Du Sasa Yan Yanping Chen Danping Chen |
| author_facet | Shuai Han Yiting Tao Ying Du Sasa Yan Yanping Chen Danping Chen |
| author_sort | Shuai Han |
| collection | DOAJ |
| description | Glass ceramics with GdVO<sub>4</sub>: Tb nanocrystals impregnated in the highly transparent silica glass were prepared by the porous glass and sintering process and confirmed by XRD, Raman spectrum, and TEM. Spectral analysis shows that there are multifarious energy transfer processes in GdVO<sub>4</sub>: Tb nanocrystals, such as VO<sub>4</sub><sup>3−</sup> → Tb<sup>3+</sup>, Gd<sup>3+</sup> → VO<sub>4</sub><sup>3−</sup>, Gd<sup>3+</sup> → VO<sub>4</sub><sup>3−</sup> → Tb<sup>3+</sup>, and Gd<sup>3+</sup> → Tb<sup>3+</sup>, and the main one is VO<sub>4</sub><sup>3−</sup> → Tb<sup>3+</sup>. In this process, <sup>3</sup>T<sub>1,2</sub> → <sup>1</sup>A<sub>1</sub> transition of VO<sub>4</sub><sup>3−</sup> transfers the energy to Tb<sup>3+</sup> and generates <sup>5</sup>D<sub>3</sub> → <sup>7</sup>F<sub>6,5,4,3,2</sub> and <sup>5</sup>D<sub>4</sub> → <sup>7</sup>F<sub>5</sub> transitions of Tb<sup>3+</sup>. The energy transfer efficiency is 29.5%, and the excitation wavelength range of Tb<sup>3+</sup> ions can be shifted from 230–260 nm to 280–365 nm. This shows that GdVO<sub>4</sub> can effectively change the excitation wavelength of Tb<sup>3+</sup>, which is conducive to the application of Tb<sup>3+</sup> ions excited by LED light sources. |
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| language | English |
| last_indexed | 2024-03-10T19:48:46Z |
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| spelling | doaj.art-96b06b482d0548689788929d6e0a3ca62023-11-20T00:33:00ZengMDPI AGCrystals2073-43522020-05-0110539610.3390/cryst10050396Luminescence Behavior of GdVO<sub>4</sub>: Tb Nanocrystals in Silica Glass-CeramicsShuai Han0Yiting Tao1Ying Du2Sasa Yan3Yanping Chen4Danping Chen5Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaInstitute of Materials, China Academy of Engineering Physics, Mianyang 621000, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaGlass ceramics with GdVO<sub>4</sub>: Tb nanocrystals impregnated in the highly transparent silica glass were prepared by the porous glass and sintering process and confirmed by XRD, Raman spectrum, and TEM. Spectral analysis shows that there are multifarious energy transfer processes in GdVO<sub>4</sub>: Tb nanocrystals, such as VO<sub>4</sub><sup>3−</sup> → Tb<sup>3+</sup>, Gd<sup>3+</sup> → VO<sub>4</sub><sup>3−</sup>, Gd<sup>3+</sup> → VO<sub>4</sub><sup>3−</sup> → Tb<sup>3+</sup>, and Gd<sup>3+</sup> → Tb<sup>3+</sup>, and the main one is VO<sub>4</sub><sup>3−</sup> → Tb<sup>3+</sup>. In this process, <sup>3</sup>T<sub>1,2</sub> → <sup>1</sup>A<sub>1</sub> transition of VO<sub>4</sub><sup>3−</sup> transfers the energy to Tb<sup>3+</sup> and generates <sup>5</sup>D<sub>3</sub> → <sup>7</sup>F<sub>6,5,4,3,2</sub> and <sup>5</sup>D<sub>4</sub> → <sup>7</sup>F<sub>5</sub> transitions of Tb<sup>3+</sup>. The energy transfer efficiency is 29.5%, and the excitation wavelength range of Tb<sup>3+</sup> ions can be shifted from 230–260 nm to 280–365 nm. This shows that GdVO<sub>4</sub> can effectively change the excitation wavelength of Tb<sup>3+</sup>, which is conducive to the application of Tb<sup>3+</sup> ions excited by LED light sources.https://www.mdpi.com/2073-4352/10/5/396transparent glass-ceramicsGdVO<sub>4</sub>: Tbluminescenceenergy transfer |
| spellingShingle | Shuai Han Yiting Tao Ying Du Sasa Yan Yanping Chen Danping Chen Luminescence Behavior of GdVO<sub>4</sub>: Tb Nanocrystals in Silica Glass-Ceramics Crystals transparent glass-ceramics GdVO<sub>4</sub>: Tb luminescence energy transfer |
| title | Luminescence Behavior of GdVO<sub>4</sub>: Tb Nanocrystals in Silica Glass-Ceramics |
| title_full | Luminescence Behavior of GdVO<sub>4</sub>: Tb Nanocrystals in Silica Glass-Ceramics |
| title_fullStr | Luminescence Behavior of GdVO<sub>4</sub>: Tb Nanocrystals in Silica Glass-Ceramics |
| title_full_unstemmed | Luminescence Behavior of GdVO<sub>4</sub>: Tb Nanocrystals in Silica Glass-Ceramics |
| title_short | Luminescence Behavior of GdVO<sub>4</sub>: Tb Nanocrystals in Silica Glass-Ceramics |
| title_sort | luminescence behavior of gdvo sub 4 sub tb nanocrystals in silica glass ceramics |
| topic | transparent glass-ceramics GdVO<sub>4</sub>: Tb luminescence energy transfer |
| url | https://www.mdpi.com/2073-4352/10/5/396 |
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