温度计
发光
材料科学
分析化学(期刊)
红外线的
兴奋剂
激发
发光测量
散射
光学
原子物理学
光电子学
化学
物理
色谱法
量子力学
作者
Qixuan Zhang,Jumpei Ueda,Ruilin Zheng,Setsuhisa Tanabe
标识
DOI:10.35848/1347-4065/ad14a6
摘要
Abstract Research of luminescent thermometer has predominantly centered around visible-light thermometers, susceptible to significant impact from Raleigh scattering (~λ−4). In this work, Cr4+ and Yb3+ co-doped Y3Al5O12 thermometer is reported. Both emission and excitation are in the infrared range, which makes this thermometer much less affected by Raleigh scattering compared to traditional visible-light thermometers. The non-overlapping of Yb3+ and Cr4+ emissions in the PL spectrum is also a major advantage over conventional thermometers. By calculating PL intensity ratio of Yb3+ and Cr4+ as a function of temperature, the maximum relative sensitivity reach 1.60% K-1 at 200 K. In addition, Cr4+ and Yb3+ co-doped Y3Al5O12 as a thermometer based on Cr4+ luminescence lifetime exhibits a relative sensitivity of 0.56% K-1. This work provides inspiration for the design of transition metal and rare-earth co-doped dual-mode thermometer.
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