使用光板显微镜和从微型和纳米稀土复合材料的上转化光学进行体积温度测绘
Dannareli Barron-Ortiz1, Ruben D Cadena-Nava2, Enric Pérez-Parets3
1Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Carretera Ensenada-Tijuana, No. 3918, Zona Playitas, Ensenada 22860, Mexico.
Micromachines
|November 25, 2023
概括
我们开发了一种新的3D温度绘图技术,使用光板显微镜和光强度比 (FIR) 测量. 这种方法准确地绘制了纳米材料中的温度,为热分析提供了一个有前途的工具.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 光学物理学的光学物理学
背景情况:
- 准确的温度映射对于理解材料特性和过程至关重要.
- 上转化纳米粒子 (UCNPs) 为传感应用提供独特的光学特性.
- 现有的3D温度绘图技术可能是复杂的,规模有限的.
研究的目的:
- 介绍一个简单而有效的3D温度映射技术.
- 用稀土杂纳米颗粒证明该技术的可行性.
- 为了能够精确地测量各种宿主材料的温度.
主要方法:
- 将光片激发与二维光强度比 (FIR) 测量相结合.
- 使用化纳米粒子 (NaYF4:Yb3+/Er3+) 作为温度探针.
- 使用单个CMOS摄像头和干扰度过器来捕获特定的光波段 (525nm和550nm).
主要成果:
- 在聚甲基 (PDMS) 和基样本中成功展示了3D温度映射.
- 在毫米尺度上取得了光学分割图像,具有良好的分辨率.
- 获得了直接与温度变化相关的2D FIR地图.
结论:
- 开发的光片FIR技术是3D温度映射的简单而有前途的方法.
- 这种技术对于散装复合材料和纳米粒子悬浮物都有效.
- 这种方法为各种科学和技术应用提供了3D温度重建的便利.
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