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首页> 外文期刊>RSC Advances >Luminescence properties and energy transfer of K3LuF6:Tb3+,Eu3+ multicolor phosphors with a cryolite structure
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Luminescence properties and energy transfer of K3LuF6:Tb3+,Eu3+ multicolor phosphors with a cryolite structure

机译：K3LUF6的发光性能和能量转移：TB3 +，EU3 +多色磷光体具有冰晶石结构

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摘要

In recent years, compounds with a cryolite structure have become excellent hosts for luminescent materials. In this paper, Tb3+ doped and Tb3+/Eu3+ co-doped K3LuF6 phosphors were prepared via a high temperature solid phase sintering method. The XRD, SEM, as well as photoluminescence excitation (PLE) and emission (PL) spectra were measured to investigate the structure and luminescence properties of the as-prepared samples. In the Tb3+/Eu3+ co-doped K3LuF6 samples, both characteristic emission spectra of Tb3+ and Eu3+ could be observed and the emission color of the K3LuF6:0.12Tb(3+),xEu(3+) phosphors could be adjusted from green to yellowish pink and the corresponding CIE values could be regulated from (0.2781, 0.5407) in the green area to (0.4331, 0.3556) in the yellowish pink area by controlling the concentration ratio of Eu3+/Tb3+. In addition, the energy transfer mechanism in Tb3+/Eu3+ co-doped K3LuF6 was calculated to be a quadrupole-quadrupole interaction from Tb3+ to Eu3+ based on the Dexter's equation.
机译：近年来，具有冰晶石结构的化合物已成为发光材料优异的主机。在本文中，Tb3 +的掺杂和TB3 + / Eu3 +的通过高温固相烧结法来制备共掺杂K3LuF6磷光体。的XRD，SEM，以及光致发光激发（PLE）和发射（PL）光谱进行测定，以调查所制备的样品的结构和发光性能。在Tb3 +的/ Eu3 +的共掺杂K3LuF6样品，Tb 3+和Eu +的两个特征发射光谱，可以观察到和K3LuF6的发光颜色：0.12Tb（3 +），XEU（3+）磷光体可从绿色调整为淡黄色粉红色和相应的CIE值可以从（0.2781，0.5407）在绿色区域通过控制Eu3 +的/ Tb3 +的浓度比来调整在肉色区域（0.4331，0.3556）。另外，在铽+ / Eu3 +的共掺杂的K3LuF6能量传递机构被计算为从Tb3 +的四极 - 四极相互作用于Eu3 +的德克斯特的方程为主。

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  • 来源
    《RSC Advances》 |2019年第8期|共8页
  • 作者

    Yang Dan; Liao Libing; Guo Qingfeng; Mei Lefu; Liu Haikun; Zhou Tianshuai; Ye Huan;

  • 作者单位

    China Univ Geosci Beijing Key Lab Mat Utilizat Nonmetall Minerals &

    Natl Lab Mineral Mat Sch Mat Sci &

    Technol Beijing 100083 Peoples R China;

    China Univ Geosci Beijing Key Lab Mat Utilizat Nonmetall Minerals &

    Natl Lab Mineral Mat Sch Mat Sci &

    Technol Beijing 100083 Peoples R China;

    China Univ Geosci Sch Gemol Beijing 100083 Peoples R China;

    China Univ Geosci Beijing Key Lab Mat Utilizat Nonmetall Minerals &

    Natl Lab Mineral Mat Sch Mat Sci &

    Technol Beijing 100083 Peoples R China;

    China Univ Geosci Beijing Key Lab Mat Utilizat Nonmetall Minerals &

    Natl Lab Mineral Mat Sch Mat Sci &

    Technol Beijing 100083 Peoples R China;

    China Univ Geosci Beijing Key Lab Mat Utilizat Nonmetall Minerals &

    Natl Lab Mineral Mat Sch Mat Sci &

    Technol Beijing 100083 Peoples R China;

    China Univ Geosci Sch Gemol Beijing 100083 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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