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掺杂某些镧系激活剂的KCe(PO₄)的合成与表征

Synthesis and characterization of KCe(PO ) doped with some lanthanide activators.

作者信息

Bhonsule Sharmila U, Wankhede Sangeeta P, Moharil Sanjiv V

机构信息

Department of Physics, Priyadarshini College of Engineering, Nagpur, India.

Department of Physics, K.D.K. College of Engineering, Nagpur, India.

出版信息

Luminescence. 2018 Mar;33(2):356-363. doi: 10.1002/bio.3421. Epub 2017 Oct 25.

DOI:10.1002/bio.3421
PMID:29071786
Abstract

KCe(PO ) doped with Dy ,Tb ,Yb and Nd phosphors were synthesized by a solid state diffusion method. The prepared samples were characterized by X-ray diffraction and photoluminescence. KCe(PO ) exhibits emission in ultraviolet (UV) region which indicates weak Ce -Ce interaction. The Ce -Ce energy transfer is not efficient. In light of this, energy transfer from Ce to other lanthanides like Dy , Tb ,Yb and Nd is rather surprising.

摘要

通过固态扩散法合成了掺杂Dy、Tb、Yb和Nd的KCe(PO₄)磷光体。采用X射线衍射和光致发光对制备的样品进行了表征。KCe(PO₄)在紫外（UV）区域有发射，这表明Ce-Ce相互作用较弱。Ce-Ce能量转移效率不高。鉴于此，从Ce到Dy、Tb、Yb和Nd等其他镧系元素的能量转移相当令人惊讶。

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