语音辅助热增强向上转换光寿命温度计和可视化温度警告在Yb3+-Ho3+-编码的Lu2Mo3O12
Yexuan Zhang1, Changheng Chen1, Yanqi Wu1
1State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, China.
Inorganic chemistry
|March 19, 2025
概括
新的Ho3+-Yb3+编码的Lu2Mo3O12光剂克服了光温度计中的热火问题. 这种双模式温度计为可视化传感应用提供了高稳定性和温度灵敏度.
科学领域:
- 材料科学 材料科学 材料科学
- 光学测温仪的使用方法
- 发光的光度是非常的低.
背景情况:
- 光温度计面临由于高温下热火 (TQ) 的局限性,阻碍了实际应用.
- 开发TQ免疫材料对于推进高温传感技术至关重要.
- 稀土合光体为传感应用提供可调节的光学性能.
研究的目的:
- 为TQ免疫光温度计合成Ho3+-Yb3+编码的Lu2Mo3O12光体.
- 为了研究温度依赖的上升转换光寿命 (FL) 和颜色调制.
- 构建和验证一个双模式自校准光温度计.
主要方法:
- 合成Ho3+-Yb3+-编的Lu2Mo3O12体.这些体中,体中含有的含量是:
- 使用声子辅助能量转移 (PAET) 进行温度敏感发光.
- 采用光寿命 (FL) 技术和国际照明委员会 (CIER) 的色度坐标比率用于双模式传感.
主要成果:
- Ho3+-Yb3+-codoped Lu2Mo3O12光体表现出温度依赖的上转换光寿命从35.65到52.94μs (280480 K).
- 光颜色随着温度的增加从绿色转变为红色.
- 一个双模式温度计表现出高稳定性和温度灵敏度 (δT = 0.9 K通过CIER).
结论:
- 开发的Ho3+-Yb3+-codopedLu2Mo3O12光体对热火是免疫的.
- 基于FL和CIER技术的双模式温度计显示出可视化温度预警和传感的前景.
- 该材料的负热膨胀 (NTE) 特性有助于其性能.
相关概念视频
Photoluminescence: Applications
361
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...
361
Fluorescence and Phosphorescence: Instrumentation
508
Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.
508
Atomic Spectroscopy: Effects of Temperature
261
Atomization, converting samples into gas-phase atoms and ions, is essential for atomic spectroscopy. The flame temperature required for atomization affects the efficiency of the atomic spectroscopic methods by increasing the atomization efficiency and the relative population of the excited and ground states.
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature...
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature...
261


