A highly sensitive upconverting nano-glass-ceramic-based optical thermometer
作者： Daqin Chen , Shen Liu , Zhongyi Wan , Yan Chen
DOI: 10.1016/J.JALLCOM.2016.02.138
关键词:
摘要: Abstract Yb/Tm: YF 3 nanoparticles embedded transparent bulk glass ceramic was successfully prepared to explore its possible application in optical temperature sensors. Specifically, owing the competition of electron population thermally coupled Tm 3+ F 2,3 and H 4 excited states, two upconversion emission bands corresponding : → 6 transition 1 G → one exhibited opposite temperature-dependent behaviors, which resulted monotonous enhancement related fluorescence intensity ratio with increase temperature. As a consequence, activators present had advantages high sensitivity 1.84% per K, an avoidable spectral overlapping negligible thermal effect for accurate detecting.
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