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Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

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Published on: November 10, 2017

使用液体-固体-溶液方法,溶解热合成合兰化物 CaF₂上转化纳米颗粒.

Kapil S Janbandhu¹, V B Pawade², Anil M Pethe³

¹Department of Physics, R.T.M. Nagpur University, Nagpur, 440033, India.

Scientific reports

|October 3, 2025

概括

使用溶热方法合成的上转化纳米粒子 (UCNPs) 呈现出纯绿色,红色,蓝色和白色的排放. 这些UCNP显示出出色的色彩纯度和潜在的安全应用程序,如隐藏的指纹检测.

关键词:

在 CaF2 的情况下.化物的化物.在LSS中使用LSS.纳米颗粒纳米颗粒溶解热的解决方案在UCNPs中,UCNPs是最重要的.

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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:

上转化纳米粒子 (UCNPs) 对于生物成像,安全打印和光电子技术至关重要,因为它们具有独特的排放特性.
化 (CaF2) 纳米粒子提供可调节的发光,用于各种应用.

研究的目的:

为了合成和表征Ho3+/Yb3+,Er3+/Yb3+,Tm3+/Yb3+和Er3+/Tm3+/Yb3+联合化CaF2纳米粒子.
研究这些UCNP中的光发光特性和能量传递机制.
评估Er3+/Yb3+联合化CaF2UCNP在隐性指纹检测和安全应用中的潜力.

主要方法:

溶解热合成方法用于制造杂的CaF2纳米粒子.
使用X射线衍射 (XRD),里埃转换红外光谱 (FTIR),高分辨率传输电子显微镜 (HR-TEM),拉曼光谱和光发光光谱进行表征.
CIE-1931色彩分析以确定颜色坐标和纯度.

主要成果:

合成的UCNP在980nm激发下呈现出纯绿色,红色,蓝色,黄色和白色的辐射.
红色,绿色,蓝色和黄色排放的色彩纯度超过了90%,表明了出色的色彩性能.
成功研究了Yb3+传感器和Ho3+,Er3+,Tm3+激活器之间的能量传递机制.

结论:

合成的CaF2UCNP显示出高颜色纯度和可调节的辐射,适用于先进的光学应用.
该研究强调了这些UCNP在安全功能中的潜力,特别是隐藏指纹检测.
在CaF2中使用兰化离子兴奋剂为开发新型上转化材料提供了多功能平台.