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Updated: Jan 29, 2026

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阴离子组对ZnO的结构和发光特性的影响:Sm3+ 通过燃烧方法合成的
Edwin Tumelo Maleho1, Machaba Leanyatsa Abraham Letswalo1, Buyisiwe M Sondezi1
1Department of Physics, University of Johannesburg, Johannesburg ZA-2006, South Africa.
Molecules (Basel, Switzerland)
|January 28, 2026
概括
这项研究用酸盐,酸盐和硫酸盐离子组合成了Sm3+-doped ZnO光体. 酸盐和酸盐的结合显著改变了晶体结构和增强了发光,Zn4B6O13:Sm3+显示了最强烈的色辐射.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 发光的阴影是什么意思
背景情况:
- 氧化 (ZnO) 是一种多功能半导体,在光电子领域具有潜在的应用.
- 用像萨马 (Sm3+) 这样的稀土离子对ZnO进行兴奋剂可以改变其光学特性.
- 对于材料设计来说,研究阴离子组对化 ZnO 的结构和发光特性的影响至关重要.
研究的目的:
- 探索酸盐 (BO33-),酸盐 (PO43-) 和硫酸盐 (SO42-) 离子组对Sm3+-doped ZnO的结构和发光的影响.
- 基于ZnO,Zn4B6O13和Zn2P7的新型Sm3+兴奋的合成和表征.
- 为了识别具有增强发光特性和颜色纯度的光体.
主要方法:
- 使用燃烧合成来制备ZnO,ZnO:Sm3+,Zn4B6O13:Sm3+,以及Zn2P2O7:Sm3+的.
- 使用X射线衍射 (XRD) 来分析晶体结构和相位形成.
- 使用像扫描电子显微镜 (SEM) 这样的技术进行了形态表征.
- X射线光电谱 (XPS) 证实了Sm离子的氧化状态.
- 光发光 (PL) 光谱和CIE颜色计算评估了发光特性和颜色纯度.
主要成果:
- 合BO33-和PO43-离子导致新结晶相的形成 (立方 Zn4B6O13和单临床 Zn2P2O7),分别,而硫酸盐离子导致ZnO与最小的硫合并.
- 基于ZnO的样品的XRD证实了石结构,酸盐/酸盐合并样品的不同立方/单临床结构.
- 光发光研究显示ZnO:Sm3+和ZnO-SO4:Sm3+的宽带辐射,以及Zn4B6O13:Sm3+和Zn2P2O7:Sm3+的特征性的Sm3+辐射.
- Zn4B6O13:Sm3+表现出最强烈的光发光,并在色区域达到98%的颜色纯度.
结论:
- 阴离子组的选择显著影响Sm3+化ZnO材料的晶体结构和发光.
- 酸盐和酸盐离子组有效地形成新的宿主晶格 (Zn4B6O13和 Zn2P2O7),具有增强的Sm3+发光.
- Zn4B6O13:Sm3+因其高发光强度和颜色纯度,显示出色发射应用的极佳潜力.
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