Improvement of Luminescence Properties of Eulytite Single-Phase White Emitting Ca<sub>3</sub>Bi (PO<sub>4</sub>)<sub>3</sub>: Ce<sup>3+</sup>/Dy<sup>3+</sup> Phosphor
To reduce the issue of tri-primary color reabsorption, a new approach for single-phase phosphors as light-emitting diodes (LEDs) has been recommended. The structures, morphology, photoluminescence, thermal stability, and luminescence mechanism of a variety of Ca<sub>3</sub>Bi (PO<sub&...
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MDPI AG
2023-06-01
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| author | Mengjiao Xu Jiamin Liang Luxiang Wang Nannan Guo Lili Ai |
| author_facet | Mengjiao Xu Jiamin Liang Luxiang Wang Nannan Guo Lili Ai |
| author_sort | Mengjiao Xu |
| collection | DOAJ |
| description | To reduce the issue of tri-primary color reabsorption, a new approach for single-phase phosphors as light-emitting diodes (LEDs) has been recommended. The structures, morphology, photoluminescence, thermal stability, and luminescence mechanism of a variety of Ca<sub>3</sub>Bi (PO<sub>4</sub>)<sub>3</sub> (CBPO): Ce<sup>3+</sup>/Dy<sup>3+</sup> phosphors were investigated. XRD characterization showed that all CBPO samples were eulytite structures. Furthermore, the energy transfer process from Ce<sup>3+</sup> to Dy<sup>3+</sup> in CBPO is systematically investigated in this work, and the color of light can be adjusted by changing the ratio of doped ions. Under UV light, energy is transferred from Ce<sup>3+</sup>-Dy<sup>3+</sup> mainly through quadrupole-quadrupole interactions in the CBPO host, and doping with different Dy<sup>3+</sup> concentrations tunes the emission color from blue to white. The thermal stability of the CBPO: 0.04Ce<sup>3+</sup>, 0.08Dy<sup>3+</sup> samples is outstanding, and the CIE coordinates of the samples after emission have little effect with temperature, while their emission intensity at 423 K is as strong as that at room temperature, reaching 90%. The above results indicate that this CBPO material has great potential as a white light phosphor under near-UV excitation at the optimized concentration of Ce<sup>3+</sup> and Dy<sup>3+</sup>. |
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| last_indexed | 2024-03-11T01:34:21Z |
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| spelling | doaj.art-91525b50546a40279d1b8cf672db9ee82023-11-18T17:06:13ZengMDPI AGMolecules1420-30492023-06-012813496710.3390/molecules28134967Improvement of Luminescence Properties of Eulytite Single-Phase White Emitting Ca<sub>3</sub>Bi (PO<sub>4</sub>)<sub>3</sub>: Ce<sup>3+</sup>/Dy<sup>3+</sup> PhosphorMengjiao Xu0Jiamin Liang1Luxiang Wang2Nannan Guo3Lili Ai4State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, ChinaState Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, ChinaState Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, ChinaState Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, ChinaState Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, ChinaTo reduce the issue of tri-primary color reabsorption, a new approach for single-phase phosphors as light-emitting diodes (LEDs) has been recommended. The structures, morphology, photoluminescence, thermal stability, and luminescence mechanism of a variety of Ca<sub>3</sub>Bi (PO<sub>4</sub>)<sub>3</sub> (CBPO): Ce<sup>3+</sup>/Dy<sup>3+</sup> phosphors were investigated. XRD characterization showed that all CBPO samples were eulytite structures. Furthermore, the energy transfer process from Ce<sup>3+</sup> to Dy<sup>3+</sup> in CBPO is systematically investigated in this work, and the color of light can be adjusted by changing the ratio of doped ions. Under UV light, energy is transferred from Ce<sup>3+</sup>-Dy<sup>3+</sup> mainly through quadrupole-quadrupole interactions in the CBPO host, and doping with different Dy<sup>3+</sup> concentrations tunes the emission color from blue to white. The thermal stability of the CBPO: 0.04Ce<sup>3+</sup>, 0.08Dy<sup>3+</sup> samples is outstanding, and the CIE coordinates of the samples after emission have little effect with temperature, while their emission intensity at 423 K is as strong as that at room temperature, reaching 90%. The above results indicate that this CBPO material has great potential as a white light phosphor under near-UV excitation at the optimized concentration of Ce<sup>3+</sup> and Dy<sup>3+</sup>.https://www.mdpi.com/1420-3049/28/13/4967eulytitephosphorswhite lightenergy transfersingle phasethermal stability |
| spellingShingle | Mengjiao Xu Jiamin Liang Luxiang Wang Nannan Guo Lili Ai Improvement of Luminescence Properties of Eulytite Single-Phase White Emitting Ca<sub>3</sub>Bi (PO<sub>4</sub>)<sub>3</sub>: Ce<sup>3+</sup>/Dy<sup>3+</sup> Phosphor Molecules eulytite phosphors white light energy transfer single phase thermal stability |
| title | Improvement of Luminescence Properties of Eulytite Single-Phase White Emitting Ca<sub>3</sub>Bi (PO<sub>4</sub>)<sub>3</sub>: Ce<sup>3+</sup>/Dy<sup>3+</sup> Phosphor |
| title_full | Improvement of Luminescence Properties of Eulytite Single-Phase White Emitting Ca<sub>3</sub>Bi (PO<sub>4</sub>)<sub>3</sub>: Ce<sup>3+</sup>/Dy<sup>3+</sup> Phosphor |
| title_fullStr | Improvement of Luminescence Properties of Eulytite Single-Phase White Emitting Ca<sub>3</sub>Bi (PO<sub>4</sub>)<sub>3</sub>: Ce<sup>3+</sup>/Dy<sup>3+</sup> Phosphor |
| title_full_unstemmed | Improvement of Luminescence Properties of Eulytite Single-Phase White Emitting Ca<sub>3</sub>Bi (PO<sub>4</sub>)<sub>3</sub>: Ce<sup>3+</sup>/Dy<sup>3+</sup> Phosphor |
| title_short | Improvement of Luminescence Properties of Eulytite Single-Phase White Emitting Ca<sub>3</sub>Bi (PO<sub>4</sub>)<sub>3</sub>: Ce<sup>3+</sup>/Dy<sup>3+</sup> Phosphor |
| title_sort | improvement of luminescence properties of eulytite single phase white emitting ca sub 3 sub bi po sub 4 sub sub 3 sub ce sup 3 sup dy sup 3 sup phosphor |
| topic | eulytite phosphors white light energy transfer single phase thermal stability |
| url | https://www.mdpi.com/1420-3049/28/13/4967 |
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