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首页> 外文期刊>Optical Materials >Effect of co-doping metal ions (Li~+, Na~+ and K~+) on the structural and photoluminescent properties of nano-sized Y_2O_3:Eu~(3+) synthesized by co-precipitation method
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Effect of co-doping metal ions (Li~+, Na~+ and K~+) on the structural and photoluminescent properties of nano-sized Y_2O_3:Eu~(3+) synthesized by co-precipitation method

机译：共掺杂金属离子（Li〜+，Na〜+和K〜+）对共沉淀法合成的纳米Y_2O_3：Eu〜（3+）结构和光致发光性能的影响

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摘要

Nano-sized yttria (Y_2O_3) doped with Eu~(3+) powders were successfully synthesized by co-precipitation method, where the quenching concentration for photoluminescence study of Eu~(3+) ions is 12 mol% which is much higher than the micro-scaled powders. The effect of changing concentration of co-dopants (Li~+, Na~+ and K~+) along with Eu~(3+) (12 mol%) is studied on optical properties of Y_2O_3 nanoparticles. The results showed that the incorporation of these metal ions can further improve the luminescence intensity. The highest emission intensity was observed with 6 mol% of Li~+, 2 mol% of Na~+ and 1 mol% of K~+ doping in Y203:Eu~(3+)(12 mol%) nanoparticles given by the formula (Y_(0.82mol%)Eu_(0.12mol%)Li_(0.06mol%))_2O_3. (Y_(0.86mol%)-Eu_(0.12mol%)Na_(0.02mol%))_2O_3. and (Y_(0.87mol%)Eu_(0.12mol%)K_(0.01mol%))_2O_3 respectively. The structural, morphological and optical properties were studied by X-ray diffraction, Rietveld refinement, transmission electron microscopy, Fourier transform infrared spectroscopy, and Photoluminescence spectroscopy. XRD studies followed by Rietveld refinement confirmed the body-centered cubic structure of doped nanophosphors. All the powders were well crystallized and the emission intensity was observed to increase further from quenching concentration of Eu 12 mol% with co-doped samples.
机译：通过共沉淀法成功地合成了Eu_（3+）掺杂的纳米氧化钇（Y_2O_3），其中Eu〜（3+）离子的光致发光猝灭浓度为12 mol％，远高于其。微型粉末。研究了Y_2O_3纳米粒子的光学性能，研究了Eu〜（3 +）（12 mol％）共掺杂剂（Li〜+，Na〜+和K〜+）浓度变化的影响。结果表明，这些金属离子的掺入可以进一步提高发光强度。在Y203：Eu〜（3 +）（12 mol％）纳米粒子中，掺杂了6 mol％的Li〜+，2 mol％的Na〜+和1 mol％的K〜+掺杂时，观察到最高发射强度。 （Y_（0.82mol％）Eu_（0.12mol％）Li_（0.06mol％））_ 2O_3。 （Y_（0.86mol％）-Eu_（0.12mol％）Na_（0.02mol％））_ 2O_3。和（Y_（0.87mol％）Eu_（0.12mol％）K_（0.01mol％））_ 2O_3。通过X射线衍射，Rietveld精制，透射电子显微镜，傅立叶变换红外光谱和光致发光光谱研究了结构，形态和光学性质。 XRD研究以及Rietveld精炼证实了掺杂纳米磷光体的体心立方结构。所有粉末均充分结晶，并且观察到随着共掺杂样品的Eu 12摩尔％的淬灭浓度，发射强度进一步增加。

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  • 来源
    《Optical Materials》 |2014年第7期|1131-1138|共8页
  • 作者

    Deepak Kumar; Manoj Sharma; O.P. Pandey;

  • 作者单位

    School of Physics and Materials Science Thapar University Patiala 147002 Punjab India;

    Department of Nanotechnology Sri Guru Cranth Sahib World University 140406 Fatehgarh Sahib Punjab India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Rare earth oxides; Phosphors; Doping; Nanomaterials;

    机译：稀土氧化物;荧光粉掺杂纳米材料;

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