通过动态调节 Ho3+:5I6 耗尽的升级变换发光,用于速度传感
1Huzhou Key Laboratory of Materials for Energy Conversion and Storage, College of Science, Huzhou University, Huzhou 313000, China.
概括
这项研究展示了使用光轮与NaGdF4:Yb3+/Ho3+/Ce3+/Sc3+. 旋转速度控制红色到绿色的排放比率,显示出速度传感应用的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 发光的光度是非常的低.
- 纳米材料是一种纳米材料.
背景情况:
- 上转换发光 (UCL) 材料具有独特的光学特性.
- 动态控制UCL发射颜色对于高级应用至关重要.
- 像NaGdF4这样的稀土合化物材料对UCL来说是有希望的.
研究的目的:
- 开发一种动态调整 NaGdF4:Yb3+/Ho3+/Ce3+/Sc3+的 UCL 颜色的策略.
- 为了研究旋转依赖UCL颜色变化背后的机制.
- 探索这种材料在速度传感方面的潜力.
主要方法:
- 制造NaGdF4:Yb3+/Ho3+/Ce3+/Sc3+ . 在这种情况下,的含量是:
- 使用轮设置进行动态激发调制.
- 在不同旋转速度下对UCL辐射进行光谱分析.
- 开发一个物理模型来解释排放强度比率.
主要成果:
- 通过调整光轮旋转速度,证明了从红色到绿色的动态色调.
- 确定了Ho3+:5I6水平耗尽模式的调节作为主要机制.
- 在稳定状态激发下观察到高纯度的红色UCL.
- 建立了旋转速度和绿色与红色排放强度比率 (IG/IR) 之间的相关性.
结论:
- 介绍了一种使用光轮进行动态UCL色彩控制的新方法.
- 取决于旋转的UCL颜色变化归因于激发调制对离子耗尽的影响.
- 开发的材料和方法显示出速度传感应用的潜力.
- 提供了基于旋转组件的动态UCL监管的新见解.
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