碳点介导合成NaYF4:Yb3+,Er3+@碳点复合材料具有增强的向上转换发光,用于温度传感
Linlin Zou1, Ting Yu1,2, Haoyang Sheng1
1School of Applied Physics and Materials, Wuyi University Jiangmen Guangdong 529020 P. R. China yuting1009@163.com yqchenwyu@126.com zengqg@mail.ustc.edu.cn.
RSC advances
|April 23, 2025
概括
合成了新的上转化 (UC) 纳米晶体和碳点 (CD) 复合材料. 这些复合材料增强了UC辐射,并显示出敏感光学温度计的前景.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 光子学 是一个光子学.
背景情况:
- 上转化 (UC) 纳米晶体和碳点 (CD) 是具有重大研究兴趣的材料.
- 应用范围包括生物医学,光传感和防伪.
- 控制UC属性对于高级应用程序至关重要.
研究的目的:
- 开发一种用于制备NaYF4:Yb3+,Er3+@CDs复合材料的新方法.
- 研究CDs对NaYF4.4相转换和UC特性的影响.
- 探索这些复合材料作为光学温度计的潜力.
主要方法:
- 通过立方到六角相转换合成NaYF4:Yb3+,Er3+@CDs复合材料.
- 使用形态和结构分析进行表征.
- 评估UC排放增强和发光寿命.
- 使用光强度比技术评估光学温度计性能.
主要成果:
- 证实了NaYF4:Yb3+,Er3+@CDs复合物的成功形成.
- 观察到增强的UC发射和延长的发光寿命,取决于CD度.
- 归因于火中心 (例如OH-组) 的拦截的UC排放增强.
- 复合材料显示出作为光学温度计的潜力,其最大相对灵敏度为1.08K-1在298K.
结论:
- 建立了一种用于制备UC@CD复合材料的新方法.
- CDs有效地调解NaYF4相转换并增强UC特性.
- 开发的复合材料显示出对高性能光学温度传感应用的显著前景.
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