Re4+ 发光作为光学压力传感中红宝石的高灵敏度替代方案
Re4+ Luminescence as a Highly Sensitive Alternative to Ruby for Optical Pressure Sensing
- School of Physical Science and Technology, Ningbo University（宁波大学物理科学与技术学院）
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences（波兰科学院低温结构研究所）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
本研究提出 Cs2HfCl6:Re4+ 作为红宝石的替代发光压力指示剂，其压力灵敏度提高 15 倍（6.93 nm GPa-1），并支持比率型读数（175.1% GPa-1），首次展示 Re4+ 发光在压力传感中的应用。
AI中文摘要：
基于发光的远程压力传感为在传统接触方法难以实施的条件下的压力测定提供了一种强有力的方法。尽管红宝石在发光压力指示剂中仍是不容置疑的黄金标准，但其相对较低的压力灵敏度和对温度变化的敏感性是重要的局限性。因此，本工作提出将 Cs2HfCl6:Re4+ 作为替代的发光压力指示剂，其压力灵敏度（6.93 nm GPa-1）比红宝石高 15 倍，同时保持相当的热灵敏度，使其成为光学测压中特别有吸引力的材料。此外，Cs2HfCl6:Re4+ 能够实现比率型压力读数，提供高达 175.1% GPa-1 的高相对压力灵敏度。据我们所知，这项工作首次展示了 Re4+ 发光用于压力传感，引入了一类新型发光压力指示剂，并为开发基于 Re4+ 激活材料的高灵敏度光学压力计开辟了新机遇。
英文摘要：
Luminescence-based remote pressure sensing provides a powerful approach for pressure determination under conditions where conventional contact methods are difficult to implement. Although ruby remains the undisputed gold standard among luminescent pressure indicators, its relatively low pressure sensitivity and susceptibility to temperature variations represent important limitations. Therefore, in this work, Cs2HfCl6:Re4+ is proposed as an alternative luminescent pressure indicator exhibiting a 15-fold higher pressure sensitivity (6.93 nm GPa-1) than ruby while maintaining a comparable thermal sensitivity, making it a particularly attractive material for optical manometry. Furthermore, Cs2HfCl6:Re4+ enables ratiometric pressure readout, providing a high relative pressure sensitivity reaching 175.1% GPa-1. To the best of our knowledge, this work represents the first demonstration of Re4+ luminescence for pressure sensing, introducing a new class of luminescent pressure indicators and opening new opportunities for the development of highly sensitive optical manometers based on Re4+-activated materials.
