LaCeO:Ho Yb粉末的光学温度传感性能

Optical Temperature-Sensing Performance of LaCeO:Ho Yb Powders.

作者信息

Chao Jiameng, Lin Hui, Yu Dechao, Hong Ruijin, Han Zhaoxia, Tao Chunxian, Zhang Dawei

机构信息

Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, China.

出版信息

Materials (Basel). 2024 Apr 7;17(7):1692. doi: 10.3390/ma17071692.

DOI:10.3390/ma17071692

PMID:38612204

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11012755/

Abstract

In this paper, LaCeO powders co-activated by Ho and Yb were synthesized by a high temperature solid-state reaction. Both Ho and Yb substitute the La sites in the LaCeO lattice, where the Ho concentration is 0.5 at.% and the Yb concentration varies in the range of 10~18% at.%. Pumped by a 980 nm laser, the up-conversion (UC) green emission peak at 547 nm and the red emission at 661 nm were detected. When the doping concentration of Ho and Yb are 0.5 at.% and 14% at.%, respectively, the UC emission reaches the strongest intensity. The temperature-sensing performance of LaCeO:Ho with Yb was studied in the temperature range of 303-483 K, where the highest relative sensitivity (S) is 0.0129 K at 483 K. The results show that the powder LaCeO:Ho, Yb can be a potential candidate for remote temperature sensors.

摘要

本文采用高温固相反应法合成了由Ho和Yb共激活的LaCeO粉末。Ho和Yb均取代了LaCeO晶格中的La位，其中Ho浓度为0.5 at.%，Yb浓度在10%~18% at.%范围内变化。在980 nm激光泵浦下，检测到547 nm处的上转换（UC）绿色发射峰和661 nm处的红色发射。当Ho和Yb的掺杂浓度分别为0.5 at.%和14% at.%时，UC发射强度最强。研究了LaCeO:Ho与Yb在303 - 483 K温度范围内的温度传感性能，其中在483 K时最高相对灵敏度（S）为0.0129 K。结果表明，粉末LaCeO:Ho, Yb可作为远程温度传感器的潜在候选材料。