有前途的合兰化物双基酸KYb(MoO4) 2光剂,用于高效的升级转换发光和温度传感
Liqing Yan1, Mingming Xing1, Yue Ma1
1Physics Department, Dalian Maritime University, Dalian, Liaoning 116026, China.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
|December 15, 2023
概括
这项研究引入了一种新的KYb(MoO4) 2宿主,用于高效的上转换发光 (UCL) 和光学温度传感. 该材料实现了明亮的蓝色和白色光辐射,有可能用于先进的显示器和非接触式温度测量.
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的.
- 纳米技术纳米技术
背景情况:
- 向上转换发光 (UCL) 对于各种光学应用至关重要.
- 开发高效的宿主,以进行胺离子兴奋剂,对于增强UCL至关重要.
- 光学温度计需要具有敏感和稳定的温度依赖的辐射材料.
研究的目的:
- 调查KYb(MoO4)2作为高效UCL的新宿主的潜力.
- 为了实现高效的红色,绿色和蓝色UCL使用三价兰化物离子.
- 开发一种在第一个生物窗口内运行的新型光学温度计.
主要方法:
- 合成的KYb(MoO4) 2与Ho3+,Er3+和Tm3+离子进行合.
- 使用980nm激发用于上转换发光度的测量.
- 使用光强度比 (FIR) 评估温度传感性能.
主要成果:
- 在红色,绿色和蓝色颜色中实现了高效的UCL.
- 获得了Tm3+的0.13%的罕见蓝色向上转换量子收益率 (UCQY).
- 通过与Ho3+联合使用,证明了高亮度白色UCL.
- 在673K时达到0.25×10-3K-1的最大绝对灵敏度,在303K时达到2.84%K-1的相对灵敏度.
结论:
- KYb ((MoO4) 2) 是有效的UCL和光学温度传感的有希望的宿主.
- 开发的光剂显示出用于防伪,显示器和非接触式温度传感器的潜力.
- 该材料在第一个生物窗口中的性能为生物医学应用开辟了道路.
相关概念视频
01:14Photoluminescence: Applications
405
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
405
01:23Photoluminescence: Fluorescence and Phosphorescence
2.1K
Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
A pair of electrons in a...
2.1K
03:02Colors and Magnetism
11.7K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
11.7K