Effect of Eu 3+ concentration on microstructure and photoluminescence of Sr 2SiO 4:Eu 3+ phosphors prepared by microwave assisted sintering

Ru Yuan Yang, Huang Yu Chen, Shoou-Jinn Chang, Yu Kai Yang

研究成果: Article

21 引文 (Scopus)

摘要

In this paper, effect of Eu 3+ doping concentrations on microstructure and photoluminescence of Sr 2SiO 4 phosphors was investigated. The Sr 2-xSiO 4:xEu 3+ phosphors with x=0.05, 0.1, 0.2, 0.3 were synthesized by microwave assisted sintering at 1200°C for 60 min in air. X-ray powder diffraction analysis confirmed the formation of pure Sr 2SiO 4 phase without second phase or phases of starting materials irrespective of the adding amount of Eu 3+. From scanning electron microscopy image, it is found that with more Eu 3+ ions introduced to Sr 2SiO 4, the shape of the particles is not much different from each other, but the particle size decreases significantly from 1 to 2 μm (when x=0.05) to less than 500 nm (when x=0.3). The emission spectrum was located obviously at 617 nm as the excitation spectrum at λ ex=395 nm, and it had best emission intensity when x=0.1.

原文English
頁(從 - 到)780-783
頁數4
期刊Journal of Luminescence
132
發行號3
DOIs
出版狀態Published - 2012 三月 1

指紋

Powder Diffraction
Microwaves
Particle Size
X-Ray Diffraction
Electron Scanning Microscopy
Phosphors
phosphors
Photoluminescence
sintering
Sintering
Air
Ions
photoluminescence
microwaves
microstructure
Microstructure
X ray powder diffraction
emission spectra
Particle size
Doping (additives)

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Atomic and Molecular Physics, and Optics
  • Chemistry(all)
  • Biochemistry
  • Condensed Matter Physics

引用此文

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title = "Effect of Eu 3+ concentration on microstructure and photoluminescence of Sr 2SiO 4:Eu 3+ phosphors prepared by microwave assisted sintering",
abstract = "In this paper, effect of Eu 3+ doping concentrations on microstructure and photoluminescence of Sr 2SiO 4 phosphors was investigated. The Sr 2-xSiO 4:xEu 3+ phosphors with x=0.05, 0.1, 0.2, 0.3 were synthesized by microwave assisted sintering at 1200°C for 60 min in air. X-ray powder diffraction analysis confirmed the formation of pure Sr 2SiO 4 phase without second phase or phases of starting materials irrespective of the adding amount of Eu 3+. From scanning electron microscopy image, it is found that with more Eu 3+ ions introduced to Sr 2SiO 4, the shape of the particles is not much different from each other, but the particle size decreases significantly from 1 to 2 μm (when x=0.05) to less than 500 nm (when x=0.3). The emission spectrum was located obviously at 617 nm as the excitation spectrum at λ ex=395 nm, and it had best emission intensity when x=0.1.",
author = "Yang, {Ru Yuan} and Chen, {Huang Yu} and Shoou-Jinn Chang and Yang, {Yu Kai}",
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T1 - Effect of Eu 3+ concentration on microstructure and photoluminescence of Sr 2SiO 4:Eu 3+ phosphors prepared by microwave assisted sintering

AU - Yang, Ru Yuan

AU - Chen, Huang Yu

AU - Chang, Shoou-Jinn

AU - Yang, Yu Kai

PY - 2012/3/1

Y1 - 2012/3/1

N2 - In this paper, effect of Eu 3+ doping concentrations on microstructure and photoluminescence of Sr 2SiO 4 phosphors was investigated. The Sr 2-xSiO 4:xEu 3+ phosphors with x=0.05, 0.1, 0.2, 0.3 were synthesized by microwave assisted sintering at 1200°C for 60 min in air. X-ray powder diffraction analysis confirmed the formation of pure Sr 2SiO 4 phase without second phase or phases of starting materials irrespective of the adding amount of Eu 3+. From scanning electron microscopy image, it is found that with more Eu 3+ ions introduced to Sr 2SiO 4, the shape of the particles is not much different from each other, but the particle size decreases significantly from 1 to 2 μm (when x=0.05) to less than 500 nm (when x=0.3). The emission spectrum was located obviously at 617 nm as the excitation spectrum at λ ex=395 nm, and it had best emission intensity when x=0.1.

AB - In this paper, effect of Eu 3+ doping concentrations on microstructure and photoluminescence of Sr 2SiO 4 phosphors was investigated. The Sr 2-xSiO 4:xEu 3+ phosphors with x=0.05, 0.1, 0.2, 0.3 were synthesized by microwave assisted sintering at 1200°C for 60 min in air. X-ray powder diffraction analysis confirmed the formation of pure Sr 2SiO 4 phase without second phase or phases of starting materials irrespective of the adding amount of Eu 3+. From scanning electron microscopy image, it is found that with more Eu 3+ ions introduced to Sr 2SiO 4, the shape of the particles is not much different from each other, but the particle size decreases significantly from 1 to 2 μm (when x=0.05) to less than 500 nm (when x=0.3). The emission spectrum was located obviously at 617 nm as the excitation spectrum at λ ex=395 nm, and it had best emission intensity when x=0.1.

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