基于掺铕钨酸盐荧光强度比的非接触温度传感  

Non-contact thermometry based on luminescence intensity ratio of europium-doped tungstate

作　　者：钟雷 江莎 胡潇月 王锡慧 汪永杰 相国涛 李丽 周贤菊 ZHONG Lei;JIANG Sha;HU Xiaoyue;WANG Xihui;WANG Yongjie;XIANG Guotao;LI Li;ZHOU Xianju(School of Sciences,Chongqing University of Posts and Telecommunications,Chongqing 400065,P.R.China)

机构地区：[1]重庆邮电大学理学院,重庆400065

出　　处：《重庆邮电大学学报（自然科学版）》2023年第4期767-774,共8页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：国家自然科学基金项目(11604037,12004062);重庆市自然科学基金项目(CSTB2022NSCQ-MSX0366,CSTC2021jcyj-msxmX0277);重庆市教委科学技术研究计划项目(KJQN202300652,KJZD-M202000601,KJZD-K202300612,KJQN202100615);重庆市研究生科研创新项目(CYS21328,CYS23438)。

摘　　要：为了突破传统测温技术应用的局限性,利用NaY(WO_(4))_(2):Eu^(3+)玻璃陶瓷(glass ceramics,GC)实现了具有非接触、实时响应、自校准等优势的双模荧光强度比(luminescence intensity ratio,LIR)测温。采用高温熔融淬灭法制备出含NaY(WO_(4))_(2):Eu^(3+)纳米晶的透明GC样品,并进行系列光谱测量和热敏性能分析。结果表明,样品中Eu^(3+)的激发态能级^(5)D_(1)和^(5)D_(0)和基态能级^(7)F_(2)和^(7)F_(0)为两对独立的热耦合能级,可分别基于这两对热耦合能级实现性能优异的双模LIR温度传感。该双模LIR测温技术数据可靠、测温范围广、灵敏度高,再结合GC材料优势,是可用于光纤温度传感器的核心技术材料。A dual-mode luminescence intensity ratio(LIR)thermometry with the advantages of non-contact,real-time response and self-calibration is realized by using NaY(WO_(4))_(2):Eu^(3+)glass ceramics(GC)for breaking the limitations of the application of traditional thermometer.The transparent GC containing NaY(WO_(4))_(2):Eu^(3+)nanocrystals are prepared by high-temperature melt quenching method,followed by a series of spectroscopic measurements and thermal sensitivity performance analysis.The results show that the excited state levels^(5)D_(1) and^(5)D_(0) and the ground state levels ^(7)F_(2) and ^(7)F_(0) of Eu^(3+)are two independent pairs of thermally coupled levels in the NaY(WO_(4))_(2):Eu^(3+)GC sample.The dual-mode LIR temperature sensing with excellent performance can be realized based on these two pairs of thermally coupled levels.This dual-mode LIR temperature measurement technology with reliable data,wide temperature range and high sensitivity,combined with the advantages of GC materials,is a core technology material that can be used for fiber optic temperature sensors in the future.

关 键 词：NaY(WO_(4))_(2):Eu^(3+)玻璃陶瓷 荧光强度比 热耦合能级 双模光学温度传感 

分 类 号：TN304[电子电信—物理电子学] O43[机械工程—光学工程]