摘要
为了突破传统温度计使用范围的限制,微纳温度传感器的研究进展越来越受关注。本文中,基于单个上转换微晶的两个绿色发射带(520 nm/540 nm)的荧光强度比(FIR),系统研究了单个上转换微晶表面腐蚀对其温度感应特性的影响。结果表明单个深度腐蚀的花状上转换微米晶和六角形环状上转换微米晶的测温灵敏度基本相同,这说明腐蚀形貌对测温灵敏度的影响有限。此外,两种不同腐蚀形貌的微晶在感测温度升高和降低时具有很好的再现性(偏差分别<1.7%、<3.8%)。
In order to break through the limitations of the traditional thermometer use range,the research progress of micro-nano temperature sensors has attracted more and more attention.In this article,based on the fluorescence intensity ratio(FIR)of two green emission bands(520 nm/540 nm)of a single upconversion microcrystalline,the effect of surface corrosion on the temperature sensing characteristics of a single upconversion microcrystalline is systematically studied.The results show that the temperature measurement sensitivity of a single deeply corroded flower upconversion microcrystal and a hexagonal ring upconversion microcrystal is basically the same,which indicates that the corrosion morphology has limited influence on the temperature measurement sensitivity.Additionally,two microcrystals with different corrosive morphologies have good reproducibility when sensing temperature increases and decreases(deviations<1.7%,<3.8%,respectively).
作者
杨金玉
Yang Jinyu(Hunan University of Science and Technology,Xiangtan 411201,China)
出处
《科学技术创新》
2022年第13期49-52,共4页
Scientific and Technological Innovation
关键词
上转换微米晶
荧光强度比
腐蚀测温
Upconversion microcrystalline
Fluorescence intensity ratio
Corrosion temperature measurement
