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Synthesis and Photoluminescence Properties of Dy3 + Doped White-Emitting Phosphor Sr9La(PO4)3(SiO4)Cl2:Dy3 +

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A series of apatite structure phosphors has been successfully synthesized via the high-temperature solid state method and their phase structure, photoluminescence properties, decay curves as well as PL thermal stability have been investigated in detail. Single phases in such phosphors were verified through X-ray diffraction (XRD) technique. The Sr9La(PO4)3(SiO4)Cl2:Dy3 + phosphor could efficiently assimilate then n-UV light from 200 to 500 nm and emit blue (485 nm) and yellow light ( 580 nm), originating from the f–f transitions of Dy3+. Additionally, the luminescence intensity of Sr9La0.90(PO4)3(SiO4)Cl2:0.10Dy3 + at 150 °C was 90% of that at 25 °C, which proved the good thermal stability of the sample. All results indicated that the Sr9La(PO4)3(SiO4)Cl2:Dy3 + phosphor has potential application in white LEDs.
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Keywords: LUMINESCENCE PROPERTIES; PHOSPHOR; RARE EARTH IONS; SOLID STATE

Document Type: Short Communication

Publication date: March 1, 2017

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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