基于掺铕钨酸盐荧光强度比的非接触温度传感
Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)（2023）
Abstract
为了突破传统测温技术应用的局限性,利用NaY(WO4)2:Eu3+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(WO4)2:Eu3+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Eu3+的激发态能级5D1 和5D0 和基态能级7F2 和7F0 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.
MoreKey words
NaY(WO4)2:Eu3+glass ceramics,luminescence intensity ratio,thermally coupled levels,dual-mode optical thermometry
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