The Study on the Synthesis and Luminescent Properties of the Phosphor La2O3: Dy3+

Wei Wei Tang; Wen Yu Zhao; Bin Fan

doi:10.4028/www.scientific.net/AMR.683.297

Paper Titles

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The Study on the Synthesis and Luminescent Properties of the Phosphor La₂O₃: Dy³⁺
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 683The Study on the Synthesis and Luminescent...

The Study on the Synthesis and Luminescent Properties of the Phosphor La₂O₃: Dy³⁺

Abstract:

In this paper, the phosphor La2O3: Dy3+ was synthesized by a gel-sel method and its structure, morphology, particle size, Photoluminescence (PL) and Cathodoluminescence (CL) properties were characterized by X-Ray powder diffraction (XRD), scanning electron microscopy (SEM),laser particle size analyzer, Photoluminescence (PL) and Cathodoluminescence (CL) spectra, respectively. The results indicate that the Dy3+ as luminescent centers substituted La3+ ions into the single crystal lattice of La2O3 and located in the sites of C3. The size of particles was nearly spherical with the diameter of about 1μm. The sample can be 350~500nm light into visible light. Whether Photoluminescence (PL) or Cathodoluminescence (CL), Two emission peaks at about 489 nm (blue) and 575 nm (yellow) were corresponding to 4F9/2-6H15/2 and 4F9/2-6H13/2 transitions with the maximum emission wavelength at about 575 nm. This white phosphor can be applied both in LEDs and in the field emission devices.

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Periodical:

Advanced Materials Research (Volume 683)

Pages:

297-300

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.683.297

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Online since:

April 2013

Authors:

Wei Wei Tang, Wen Yu Zhao, Bin Fan

Keywords:

Cathodoluminescence, La₂O₃: Dy³⁺, Phosphor, Photoluminescence (PL)

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