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螺旋半结构Yb3+,Er3+ 编CeO2与向上转换的圆形极化发光
Hong Wei1, Jiao Wang1, Lu Han1
1School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
Chemistry (Weinheim an der Bergstrasse, Germany)
|December 23, 2024
概括
研究人员开发了性半结构氧化物 (CeO2) 粉末,呈现向上转换的循环极化发光 (UC-CPL). 这种新型无机材料为先进的光学和电子应用提供了潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 光子学是指光子学的使用方法.
- 纳米技术纳米技术
背景情况:
- 向上转换的循环极化发光 (UC-CPL) 材料对于3D显示,加密和自旋电子非常重要.
- 制造具有UC-CPL特性的奇拉无机材料存在重大挑战.
研究的目的:
- 开发一种新的方法来合成UC-CPL活性无机材料.
- 研究这些新材料的结构和光学特性.
主要方法:
- 使用L/D-酸的性半结构氧化物 (CeO2) 粉末 (CMCs) 的水热合成.
- 在一步的过程中与 (Yb3+) 和 (Er3+) 离子进行合.
- 结构性和UC-CPL属性的表征.
主要成果:
- 成功合成了具有两级性的CMC:基于纳米粒子的纳米板和螺旋堆叠.
- 通过能量转移在Yb3+和Er3+共的CMC中实现UC-CPL.
- 在980nm激光激发下观察到光学活动 (350-500nm) 和UC-CPL发射 (520-610nm).
结论:
- 热水方法有效地产生带有UC-CPL的性半结构CeO2.
- 这项工作为设计用于光子上转换应用的奇拉无机材料提供了新的途径.
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