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在NbAlO中的内在和稀土离子激活发光
Donglei Wei1,2, Xifeng Yang1, Yushen Liu1
1School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
Inorganic chemistry
|June 4, 2023
概括
这项研究揭示了氧化 (NbAlO4) 中具有宽通道结构的内在和欧 (Eu3+) 激活的发光. 这种材料表现出高效的自我激活发光和明亮的红色辐射,当与Eu3+添加剂时,这对于新的发光材料来说是有价值的.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 发光的光度是非常的低.
背景情况:
- 对多功能材料来说,有序的,相互连接的通道结构至关重要.
- 酸盐氧化物因其电子和光学特性而受到广泛研究.
- 了解新型氧化物结构中的发光机制是技术应用的关键.
研究的目的:
- 为了研究具有宽通道结构的化 (NbAlO4) 中的内在和欧 (Eu3+) 激活的发光.
- 探索AlO4四面体和NbO6链在发光中的作用.
- 为了确定NbAlO4网格内的Eu3+离子的兴奋剂位点.
主要方法:
- 合成和表征NbAlO4.4的情况.
- 光发光谱学用于研究内在和Eu3+激活的辐射.
- 地点选择性光谱检测Eu3+兴奋剂机制.
- 带结构分析 (导电和价值带).
主要成果:
- NbAlO4表现出内在发光,具有高效的自我激活和良好的热稳定性.
- 用Eu3+添加剂的NbAlO4显示明亮的红色发光 (5D0 → 7F2在610nm的过渡).
- Eu3+离子被纳入NbAlO4.4的结构通道,而不是离子位点.
结论:
- 由于其独特的结构,NbAlO4是一种有前途的n型半导体,具有高效的内在发光.
- AlO4四面体在阻断能量转移方面发挥着作用,增强了自我激活的发光.
- 在NbAlO4通道中注射Eu3+会导致明亮的红色辐射,为新的发光材料提供了潜在的潜力.
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