Synthesis of the phosphor MgB<sub>4</sub>O<sub>7</sub> doped with Dy and its thermoluminescence （TL） characteristics

CHEN Guoyun

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Synthesis of the phosphor MgB₄O₇ doped with Dy and its thermoluminescence （TL） characteristics

更新时间：2021-03-12

- Synthesis of the phosphor MgB₄O₇ doped with Dy and its thermoluminescence （TL） characteristics
- NUCLEAR TECHNIQUES Issue 2, (2007)
- 作者机构：
  
  南昌大学物理系,南昌,330031
- 作者简介：
- 基金信息：
  
  南昌大学校基金(Z03353)
- DOI：
  CLC： O482.3
- Published：01 February 2007
- 稿件说明：
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[1]陈国云.掺Dy的MgB_4O_7磷光体的研制及其热释光特性[J].核技术,2007(02):130-134.

CHEN Guoyun. Synthesis of the phosphor MgB₄O₇ doped with Dy and its thermoluminescence （TL） characteristics[J]. Nuclear techniques, 2007, (2): 130-134.
[1]陈国云.掺Dy的MgB_4O_7磷光体的研制及其热释光特性[J].核技术,2007(02):130-134. DOI：

CHEN Guoyun. Synthesis of the phosphor MgB₄O₇ doped with Dy and its thermoluminescence （TL） characteristics[J]. Nuclear techniques, 2007, (2): 130-134. DOI：

摘要

以碳酸镁和硼酸为原料在高温条件下合成了基质材料MgB4O7并制备了MgB4O7:Dy磷光体。用RGD-3热释光剂量仪和三维热释光谱仪分别测量了这种磷光体的二维发光曲线和三维发光谱

实验观察到:1)MgB4O7:Dy磷光体热释光发光峰峰温为220℃和380℃;2)Dy3+离子的发光波长为480nm、575nm和660nm;3)磷光体220℃和380℃发光峰的相对强度随高温固相反应温度的升高而变化

但发光峰温和波长基本保持不变。对比MgB4O7:Dy和MgSO4:Dy两种热释光材料的三维发光谱

验证了掺入Dy3+离子的热释光材料的发光峰峰温主要由基质材料决定

发光波长则取决于Dy3+离子的能级跃迁的结果。

Abstract

The host MgB4O7 and the phosphor MgB4O7:Dy were synthesized under the condition of high temperature by using magnesium carbonate and boric acid. The 2-dimensional (2D) glow curve and 3-dimensional (3D) emission spectra of this TL material were measured by using RGD-3 reader and the 3D TL/OSL automatic spectrometer. From the experiment we can conclude that: 1) the phosphor MgB4O7:Dy has two TL glow peaks at about 220℃ and 380℃; 2) the wavelengths of the TL emission spectra of Dy3+ are 480nm

575nm and 660nm; 3) the intensity ratio of glow peak at about 220℃ to that at about 380℃ can be raised gradually through high temperature treatment. However

both temperature and wavelength of the glow peaks have no obvious change. By comparing the 3D emission spectra between MgB4O7:Dy and MgSO4:Dy

we have verified that in the TL materials doped with trivalence rare earth ions

temperature of the glow peak is mainly decided by the host and wavelength of the glow peak mainly depends on the transition of energy level of the rare earth ions.

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Synthesis of the phosphor MgB4O7 doped with Dy and its thermoluminescence （TL） characteristics

DOI：

摘要

Abstract

关键词

Keywords

references

Synthesis of the phosphor MgB₄O₇ doped with Dy and its thermoluminescence （TL） characteristics