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Luminescence and energy transfer of single-phase white-emitting phosphor Ba 2 Mg(PO 4 ) 2 :Ce 3+ , Eu 2+ for white LEDs.
- Source :
-
RSC advances [RSC Adv] 2022 Nov 30; Vol. 12 (53), pp. 34404-34413. Date of Electronic Publication: 2022 Nov 30 (Print Publication: 2022). - Publication Year :
- 2022
-
Abstract
- A series of Ba <subscript>2</subscript> Mg(PO <subscript>4</subscript> ) <subscript>2</subscript> :Ce <superscript>3+</superscript> , Eu <superscript>2+</superscript> phosphors were synthesized by the traditional high temperature solid-state method, and the crystal structures and luminescence properties of the samples were discussed systematically. The energy transfer from Ce <superscript>3+</superscript> to Eu <superscript>2+</superscript> in Ba <subscript>2</subscript> Mg(PO <subscript>4</subscript> ) <subscript>2</subscript> was proved to be of resonant type via a dipole-dipole interaction mechanism. With a precisely controlled relative proportion of Ce <superscript>3+</superscript> /Eu <superscript>2+</superscript> , the emission color of the samples can vary from blue (0.157, 0.071) to white (0.352, 0.332) and ultimately to yellow (0.452, 0.466) under the 323 nm ultraviolet light radiation excitation. The result reveals that the Ba <subscript>2</subscript> Mg(PO <subscript>4</subscript> ) <subscript>2</subscript> :Ce <superscript>3+</superscript> , Eu <superscript>2+</superscript> phosphor may have potential application as a single-phased white-emitting phosphor for light emitting diodes.<br />Competing Interests: The authors declare no competing financial interest.<br /> (This journal is © The Royal Society of Chemistry.)
Details
- Language :
- English
- ISSN :
- 2046-2069
- Volume :
- 12
- Issue :
- 53
- Database :
- MEDLINE
- Journal :
- RSC advances
- Publication Type :
- Academic Journal
- Accession number :
- 36545631
- Full Text :
- https://doi.org/10.1039/d2ra06357c