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Structure, tunable luminescence and thermal stability in Tb3+ and Eu3+ co-doped novel KBaIn2(PO4)3 phosphors
- Source :
- Journal of Luminescence. 221:117115
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- To develop the new luminescence materials, a series of Eu3+/Tb3+ doped novel KBaIn2(PO4)3 (KBIP) phosphors were successfully synthesized using the high-temperature solid-state method. The powder X-ray diffraction data and Rietveld refinement results showed that the phosphors are pure phases. The UV excited luminescence properties of the Eu3+/Tb3+ doped KBIP phosphors were investigated. Based on the UV spectra and decay curves, the efficient energy transfer from Tb3+ to Eu3+ in KBIP phosphor was recognized. In addition, the energy-transfer mechanism is ascribed to the resonant type via a non-radiative dipole-dipole interaction, with the transfer efficiency as high as 79.8%. At 150 °C, the overall emission intensity still maintains 68.5% of that at room temperature. The tunable color emission from green to red can be obtained by adjusting the concentration of doped Tb3+ and Eu3+ ions. The results indicate that the KBaIn2(PO4)3 based phosphors are potential candidate for applications in the plasma display panels (PDP) and lighting fields.
- Subjects :
- Materials science
Rietveld refinement
Doping
Biophysics
Analytical chemistry
Phosphor
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Biochemistry
Emission intensity
Atomic and Molecular Physics, and Optics
0104 chemical sciences
Ion
Excited state
Thermal stability
0210 nano-technology
Luminescence
Subjects
Details
- ISSN :
- 00222313
- Volume :
- 221
- Database :
- OpenAIRE
- Journal :
- Journal of Luminescence
- Accession number :
- edsair.doi...........7dc0a07f45b981a75a4749401d7f7d3c