Bi或Eu掺杂LiAlGeO4的固态合成及发光研究

IF 0.5 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Chemija Pub Date : 2022-12-09 DOI:10.6001/chemija.v33i4.4805

Artur Harnik, M. Misevicius

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引用次数: 1

摘要

在本研究中，采用固态合成方法制备了Bi掺杂和Eu掺杂的LiAlGeO4。通过X射线粉末衍射（XRD）和发光测量对所有样品进行分析。在LiAl1-xGeO4:Eux中产生单相样品的最高Eu3+浓度为x=0.08，而较高的掺杂浓度导致额外相的形成。发光测量显示在16%Eu样品中观察到最高的发射强度。此外，同一样品表现出最高的量子产率，而在LiAlGeO4:Eu1%样品中观察到最长的发光衰减。与温度相关的发光测量表明，磷光体在323K时失去了一半的效率。

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Solid-state synthesis and luminescence study of Bi or Eu-doped LiAlGeO4

In this research pristine, Bi-doped and Eu-doped LiAlGeO4 were prepared using a solid-state synthesis method. All samples were analysed by X-ray powder diffraction (XRD) and luminescence measurements. The highest Eu3+ concentration yielding monophasic samples in LiAl1-xGeO4: Eux was x = 0.08, while higher doping concentrations resulted in the formation of additional phases. The luminescence measurements revealed that the highest emission intensity was observed in the 16% Eu sample. Furthermore, the same sample demonstrated the highest quantum yield, while the longest luminescence decay was observed in the LiAlGeO4:Eu 1% sample. The temperature-dependent luminescence measurements revealed that phosphor lost half of its efficiency at 323 K.

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来源期刊

Chemija 化学-化学综合

CiteScore

1.30

自引率

16.70%

发文量

审稿时长

>12 weeks

期刊介绍： Chemija publishes original research articles and reviews from all branches of modern chemistry, including physical, inorganic, analytical, organic, polymer chemistry, electrochemistry, and multidisciplinary approaches.