Sm3 离子掺杂BaZrO3粉体的制备及其发光性能研究
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大连交通大学

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O482.31

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中国石油天然气股份有限公司石油化工研究院项目(2021210207000265)、国家重点研发计划项目(2017YFB0310300)


Preparation and Spectral Properties of BaZrO3:Sm3 Phosphors
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Dalian Jiaotong University

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    摘要:

    应用传统水热反应一步合成出一系列与基质同相的Sm3 离子掺杂BaZrO3荧光粉。XRD、SEM、粒度分布、FT-IR和发光光谱等测试结果表明,所得产物均呈立方钙钛矿结构,且当更多异价Sm3 取代Zr4 离子后,会引起晶粒尺寸、晶胞常数以及晶格应变等参数的增大。此外,随着Sm3 离子浓度升高,红外谱峰逐渐蓝移直至Sm3 (3.0 mol%)时达最大值,这与通过分子振动频率计算出的结果吻合。最后,基于光谱中宽发射带与Sm3 特征发射峰的相对强度关系证实,在BaZrO3晶体中存在缺陷发光,且当引入Sm3 离子后可实现BaZrO3与Sm3 间的能量传递。

    Abstract:

    A series of Sm3 ion doped BaZrO3 phosphors were synthesized by traditional hydrothermal method. The structure, morphology and luminescence properties of the synthesized materials were examined by X-ray diffraction(XRD), scanning electron microscopy (SEM), fourier transform infrared spectrum (FT-IR), size distribution and fluorescence spectrometer, respectively. The results show that the final products existed in a pure phase and with increasing of Sm3 concentration, the grain size, lattice constants and lattice strain showed a trend of increase. In addition, When the doping molar fraction of Tm3 was 2.0 mol%, the blue movement of the infrared absorption peak was the most, which was consistent with the theoretical calculations. Finally, based on the relative intensity relationship between the broad emission band in the spectrum and the characteristic emission peak of Sm3 , it is confirmed that there was defect luminescence in BaZrO3 crystal, and the energy transfer between BaZrO3 and Sm3 can be realized after introducing Sm3 ions.

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  • 收稿日期:2023-03-02
  • 最后修改日期:2023-05-26
  • 录用日期:2023-06-08
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