用于X射线成像板的Ba7F12Cl2：Eu2+水热合成及其表征

doi:10.7517/j.issn.1674-0475.2014.02.150

影像科学与光化学 ›› 2014, Vol. 32 ›› Issue (2): 150-156.DOI: 10.7517/j.issn.1674-0475.2014.02.150

用于X射线成像板的Ba₇F₁₂Cl₂：Eu²⁺水热合成及其表征

梁庆华, 史瑶, 马望京, 杨新民, 李智

中国科学院理化技术研究所, 北京 100190

收稿日期:2013-11-08 修回日期:2013-12-18 出版日期:2014-03-15 发布日期:2014-03-15
通讯作者: 李智

Hydrothermal Synthesis and Characterization of Ba₇F₁₂Cl₂：Eu²⁺ Used for X-ray Imaging Plate

LIANG Qinghua, SHI Yao, MA Wangjing, YANG Xinmin, LI Zhi

Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China

Received:2013-11-08 Revised:2013-12-18 Online:2014-03-15 Published:2014-03-15

摘要/Abstract

摘要：

X射线成像板的成像性能很大程度上取决于存储荧光粉材料的物理化学性能。本文采用水热制备方法，以BaCl₂、EuBr₂、NaBF₄为反应原料，以乙二胺四乙酸（EDTA）为辅助剂制备了Ba₇F₁₂Cl₂：Eu²⁺荧光粉。利用X射线粉末衍射（XRD）、场发射扫描电镜（SEM）、X射线能量损失谱（EDS）、拉曼光谱（Raman）、荧光光谱（PL）等对制备的Ba₇F₁₂Cl₂：Eu²⁺进行了表征。根据反应条件对产物的影响，初步提出了产物的形成过程。结果表明：反应温度及EDTA用量对产物物相和形貌有显著影响；制备的Ba₇F₁₂Cl₂：Eu²⁺荧光粉有较好的发光性能。

关键词: 荧光粉, 水热合成, Ba₇F₁₂Cl₂, 成像板

Abstract:

The performance of X-ray imaging plate is highly related to the physicochemical properties of X-ray storage phosphors. Herein, Ba₇F₁₂Cl₂:Eu²⁺ phosphors were successfully synthesized by hydrothermal route by using BaCl₂, NaBF₄ and Ethylene diamine tetraacetic acid (EDTA) as reactants and additive agent, respectively. The phase structure, morphology and luminescence property of the as-prepared Ba₇F₁₂Cl₂:Eu²⁺ phosphors were characterized by X-ray diffraction (XRD), Field-emission scanning electron microscopy (FESEM), Energy dispersed spectrum (EDS), Raman spectrum and photoluminescence (PL) in detail. An assumptive formation process was proposed based on the investigation of influence of the reaction time, reaction temperature and the amount of EDTA on the products. The preliminary results demonstrated that the reaction temperature and the amount of EDTA played important roles on the phase and morphology of the product. The as-obtained Ba₇F₁₂Cl₂:Eu²⁺ phosphors exhibited intense emission under the excitation of UV light.

Key words: phosphors, hydrothermal synthesis, Ba₇F₁₂Cl₂, imaging plate

梁庆华, 史瑶, 马望京, 杨新民, 李智. 用于X射线成像板的Ba₇F₁₂Cl₂：Eu²⁺水热合成及其表征[J]. 影像科学与光化学, 2014, 32(2): 150-156.

LIANG Qinghua, SHI Yao, MA Wangjing, YANG Xinmin, LI Zhi. Hydrothermal Synthesis and Characterization of Ba₇F₁₂Cl₂：Eu²⁺ Used for X-ray Imaging Plate[J]. Imaging Science and Photochemistry, 2014, 32(2): 150-156.

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用于X射线成像板的Ba₇F₁₂Cl₂：Eu²⁺水热合成及其表征

Hydrothermal Synthesis and Characterization of Ba₇F₁₂Cl₂：Eu²⁺ Used for X-ray Imaging Plate

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