Dy<sup>3+</sup> and Mn<sup>4+</sup> Ions Co-Doped Stannate Phosphors for Applications in Dual-Mode Optical Thermometry
In order to break through the limitations of the application of traditional temperature measurement technology, non-contact optical temperature sensing material with good sensitivity is one of the current research hotspots. Herein, a series of Dy<sup>3+</sup> and Mn<sup>4+</sup&...
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2025-03-01
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| author | Zaifa Yang Zhide Wang Yi Su Wenyue Zhang Yu Zheng |
| author_facet | Zaifa Yang Zhide Wang Yi Su Wenyue Zhang Yu Zheng |
| author_sort | Zaifa Yang |
| collection | DOAJ |
| description | In order to break through the limitations of the application of traditional temperature measurement technology, non-contact optical temperature sensing material with good sensitivity is one of the current research hotspots. Herein, a series of Dy<sup>3+</sup> and Mn<sup>4+</sup> co-doping Mg<sub>3</sub>Ga<sub>2</sub>SnO<sub>8</sub> fluorescent materials were prepared successfully, and the crystal structure, phase purity, and morphology of the synthesized phosphors were comprehensively investigated, as well as their photoluminescence properties, energy transfer, and high-temperature thermal stability. The two pairs of independent thermally coupled energy levels of Dy<sup>3+</sup> ions and Mn<sup>4+</sup> ions in Mg<sub>3</sub>Ga<sub>2</sub>SnO<sub>8</sub> are utilized to realize the dual-mode optical temperature detection with excellent performance. On the one hand, based on the different ionic energy level transitions of <sup>4</sup>F<sub>9/2</sub>→<sup>6</sup>H<sub>13/2</sub> and <sup>2</sup>E<sub>g</sub>→<sup>4</sup>A<sub>2g</sub> responding differently to temperature, two emission bands of 577 nm and 668 nm were chosen to construct the fluorescence intensity ratio thermometry, and the maximum sensitivity of 1.82 %K<sup>−1</sup> was achieved at 473 K. On the other hand, based on the strong temperature dependence of the lifetime of Mn<sup>4+</sup> in Mg<sub>3</sub>Ga<sub>2</sub>SnO<sub>8</sub>:0.06Dy<sup>3+</sup>,0.009Mn<sup>4+</sup>, fluorescence lifetime thermometry was constructed and a maximum sensitivity of 2.75 %K<sup>−1</sup> was achieved at 473 K. Finally, the Mg<sub>3</sub>Ga<sub>2</sub>SnO<sub>8</sub>: 0.06Dy<sup>3+</sup>,0.009Mn<sup>4+</sup> sample realizes dual-mode optical temperature measurement with high sensitivity and a wide temperature detection range, indicating that the sample has promising applications in optical temperature measurement. |
| format | Article |
| id | doaj-art-b8ca1b0750254ae8a60ec9893be3e8f1 |
| institution | DOAJ |
| issn | 1420-3049 |
| language | English |
| publishDate | 2025-03-01 |
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| spelling | doaj-art-b8ca1b0750254ae8a60ec9893be3e8f12025-08-20T03:08:53ZengMDPI AGMolecules1420-30492025-03-01307156910.3390/molecules30071569Dy<sup>3+</sup> and Mn<sup>4+</sup> Ions Co-Doped Stannate Phosphors for Applications in Dual-Mode Optical ThermometryZaifa Yang0Zhide Wang1Yi Su2Wenyue Zhang3Yu Zheng4College of Physics and Electronic Engineering, Qilu Normal University, Jinan 250200, ChinaCollege of Physics and Electronic Engineering, Qilu Normal University, Jinan 250200, ChinaCollege of Physics and Electronic Engineering, Qilu Normal University, Jinan 250200, ChinaCollege of Physics and Electronic Engineering, Qilu Normal University, Jinan 250200, ChinaCollege of Physics and Electronic Engineering, Qilu Normal University, Jinan 250200, ChinaIn order to break through the limitations of the application of traditional temperature measurement technology, non-contact optical temperature sensing material with good sensitivity is one of the current research hotspots. Herein, a series of Dy<sup>3+</sup> and Mn<sup>4+</sup> co-doping Mg<sub>3</sub>Ga<sub>2</sub>SnO<sub>8</sub> fluorescent materials were prepared successfully, and the crystal structure, phase purity, and morphology of the synthesized phosphors were comprehensively investigated, as well as their photoluminescence properties, energy transfer, and high-temperature thermal stability. The two pairs of independent thermally coupled energy levels of Dy<sup>3+</sup> ions and Mn<sup>4+</sup> ions in Mg<sub>3</sub>Ga<sub>2</sub>SnO<sub>8</sub> are utilized to realize the dual-mode optical temperature detection with excellent performance. On the one hand, based on the different ionic energy level transitions of <sup>4</sup>F<sub>9/2</sub>→<sup>6</sup>H<sub>13/2</sub> and <sup>2</sup>E<sub>g</sub>→<sup>4</sup>A<sub>2g</sub> responding differently to temperature, two emission bands of 577 nm and 668 nm were chosen to construct the fluorescence intensity ratio thermometry, and the maximum sensitivity of 1.82 %K<sup>−1</sup> was achieved at 473 K. On the other hand, based on the strong temperature dependence of the lifetime of Mn<sup>4+</sup> in Mg<sub>3</sub>Ga<sub>2</sub>SnO<sub>8</sub>:0.06Dy<sup>3+</sup>,0.009Mn<sup>4+</sup>, fluorescence lifetime thermometry was constructed and a maximum sensitivity of 2.75 %K<sup>−1</sup> was achieved at 473 K. Finally, the Mg<sub>3</sub>Ga<sub>2</sub>SnO<sub>8</sub>: 0.06Dy<sup>3+</sup>,0.009Mn<sup>4+</sup> sample realizes dual-mode optical temperature measurement with high sensitivity and a wide temperature detection range, indicating that the sample has promising applications in optical temperature measurement.https://www.mdpi.com/1420-3049/30/7/1569optical thermometryFIR technologyphosphorrare earth |
| spellingShingle | Zaifa Yang Zhide Wang Yi Su Wenyue Zhang Yu Zheng Dy<sup>3+</sup> and Mn<sup>4+</sup> Ions Co-Doped Stannate Phosphors for Applications in Dual-Mode Optical Thermometry Molecules optical thermometry FIR technology phosphor rare earth |
| title | Dy<sup>3+</sup> and Mn<sup>4+</sup> Ions Co-Doped Stannate Phosphors for Applications in Dual-Mode Optical Thermometry |
| title_full | Dy<sup>3+</sup> and Mn<sup>4+</sup> Ions Co-Doped Stannate Phosphors for Applications in Dual-Mode Optical Thermometry |
| title_fullStr | Dy<sup>3+</sup> and Mn<sup>4+</sup> Ions Co-Doped Stannate Phosphors for Applications in Dual-Mode Optical Thermometry |
| title_full_unstemmed | Dy<sup>3+</sup> and Mn<sup>4+</sup> Ions Co-Doped Stannate Phosphors for Applications in Dual-Mode Optical Thermometry |
| title_short | Dy<sup>3+</sup> and Mn<sup>4+</sup> Ions Co-Doped Stannate Phosphors for Applications in Dual-Mode Optical Thermometry |
| title_sort | dy sup 3 sup and mn sup 4 sup ions co doped stannate phosphors for applications in dual mode optical thermometry |
| topic | optical thermometry FIR technology phosphor rare earth |
| url | https://www.mdpi.com/1420-3049/30/7/1569 |
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