稀土离子的多格位占据及能量传递

林利添

doi:10.37188/CJL.20230227

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稀土离子的多格位占据及能量传递

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- 稀土离子的多格位占据及能量传递
  增强出版
- Multi-Site Occupations and Energy Transfers of Rare-Earth Ions
- 发光学报 2023年页码：1-8
- 作者机构：
  
  1.稀有金属分离与综合利用国家重点实验室，广东省稀土开发及应用研究重点实验室，广东省科学院资源利用与稀土开发研究所，广东广州　510651
- 作者简介：
  
  [ "林利添（1987–），男，广东汕头人，理学博士，副研究员，2018年于中山大学获得博士学位，主要从事固体发光材料的研究，聚焦于高温稀土闪烁晶体的生长及构效关系认识。E-mail： letin.lyn@gamil.com" ]
- 基金信息：
  
  国家自然科学基金(52002086);广东省基础与应用基础研究基金(2020A1515011211;2022A1515011011);广东省科学院科技发展项目(2020GDASYL-20200504001)
- DOI：10.37188/CJL.20230227
  中图分类号：
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林利添.稀土离子的多格位占据及能量传递[J].发光学报,

Lin Litian.Multi-Site Occupations and Energy Transfers of Rare-Earth Ions[J].Chinese Journal of Luminescence,
林利添.稀土离子的多格位占据及能量传递[J].发光学报, DOI：10.37188/CJL.20230227

Lin Litian.Multi-Site Occupations and Energy Transfers of Rare-Earth Ions[J].Chinese Journal of Luminescence, DOI：10.37188/CJL.20230227

摘要

多格位占据及其能量传递普遍存在于稀土发光材料的各个领域，且具有重要的科学及现实意义。Ce,3+,的4f–5d和Eu,3+,的4f–4f跃迁代表了稀土离子两种典型的电子跃迁类型，我们以Ce,3+,或Eu,3+,分别激活的E（δ）⁃Gd,2,Si,2,O,7,（,Pnma,）、G-La,2,Si,2,O,7,（,P,2,1,/,n,）和F-Eu,2,Si,2,O,7,（,P, $\bar{1}$ ,https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=49335414&type=,https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=49335413&type=,1.60866666,2.70933342,）为代表案例，讨论和思考稀土离子的多格位占据及其非辐射能量传递，重点在于阐述晶体结构、样品相纯度、掺杂浓度、光谱测试、格位间能量传递和光谱分辨率等须关注的事项。在稀土离子激活的发光材料研究中，我们既须考量材料晶体结构与光谱的自洽，也要从光谱及发光衰减动力学对格位间能量传递（包括传出能量和接收能量）进行分析。希望这些内容在实验及表征上对刚接触相关领域的读者有所启发。

Abstract

The multi-site occupations and the energy transfers are ubiquitous in various fields of rare-earth ions activated luminescence materials and have important scientific and practical significance. The Ce,3+, 4f–5d and the Eu,3+, 4f–4f transitions represent two typical electronic transition types of rare-earth ions. We take Ce,3+,/Eu,3+,-activated E（δ）-Gd,2,Si,2,O,7, （,Pnma,）， G-La,2,Si,2,O,7, （,P,2,1,/,n,）， and F-Eu,2,Si,2,O,7, （,P, $\bar{1}$ ,https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=49335416&type=,https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=49335415&type=,1.60866666,2.70933342,） as the representative cases to discuss and revisit the multi-site occupations and the non-radiative energy transfers， focusing on the crystal structure， the phase purity of samples， the doping concentration， the spectral characterization， the energy transfer between lattice sites， and the spectral resolution. In the studies of luminescence materials activated by rare-earth ions， we must not only consider the self-consistency of the materials’ crystal structures and their spectra， but also analyze the energy transfers （including the outgoing energy and the receiving energy） between lattice sites from the spectra and the luminescence decay dynamics. We hope that these contributions could inspire experiments and characterization for readers who are new to the related fields.

关键词

稀土发光材料格位占据能量传递晶体结构光谱分辨率

Keywords

Rare-earth luminescence materialsSite occupationEnergy transferCrystal structureSpectral resolution

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