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Updated: Jul 5, 2026

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Low-energy Cathodoluminescence for (Oxy)Nitride Phosphors
Published on: November 15, 2016
在非常小的集群大小时,兰坦酸的氧集群开始类似于固态材料:结构和 Nd (III) 的 NIR 辐射
Santanu Banerjee1, G Ajith Kumar, Richard E Riman
1Department of Chemistry and Chemical Biology, the State University of New Jersey, Piscataway, New Jersey 08854-8087, USA.
Journal of the American Chemical Society
|April 19, 2007
概括
研究人员合成了一种新型的十二核新集群,[(py) 18Nd12O6Se4(Se2) 4(SePh) 4(Se2Ph) 2Hg2(SePh) 4[(Hg(SePh) 3) 2. 这个复合体表现出独特的结构和发光特性,提供了对兰坦化集团化学的见解.
科学领域:
- 无机化学 无机化学 有机化学
- 材料科学 材料科学 材料科学
- 兰化物化学 兰化物化学
背景情况:
- 新 (Nd) 化合物因其独特的光学和磁性特性而受到探索.
- 兰化物集群为具有可调性特征的新材料设计提供了机会.
- 了解基于Nd的材料中的结构属性关系对于应用至关重要.
研究的目的:
- 为了合成和表征一种新的十二核氧聚合物.
- 研究合成集群中的结构特征和结合.
- 为了评估星团近红外 (NIR) 辐射特性.
主要方法:
- 十二核集群的合成[(py) 18Nd12O6Se4(Se2) 4(SePh) 4(Se2Ph) 2Hg2(SePh) 4[(Hg(SePh) 3 2通过Nd的反应{(SePh) 3与SeO2和Hg在化物中.
- 集群的结构分析,包括 Nd-O 键长度和 oxo 联结体几何.
- 近红外 (NIR) 辐射光谱测量以评估发光特性.
主要成果:
- 十二核星团有12个Nd(III) 离子,排列在堆叠的Nd3集中,由四面体氧联体分开.
- 围绕氧离子和-O键的结构参数类似于固态2O3.3中的结构参数.
- 星团表现出NIR发射,比一些高发射的化合物强度小,但比2O3.3更亮.
结论:
- 合成的十二核集群具有独特的结构,与固态氧化物有相似之处.
- 发光强度的变化归因于度火和声放松机制.
- 这项研究有助于理解兰坦化集群中的结构属性相关性.
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