TY - JOUR
T1 - Eliminating the “decoupling” effect of fluorescence intensity ratio thermometry for an upconversion pumped system
AU - Qin, Feng
AU - Zhao, Hua
AU - Lv, Moyang
AU - Zhou, Yuan
AU - Li, Leipeng
AU - Wang, Zhengjia
AU - Zheng, Yangdong
AU - Zhang, Zhiguo
AU - Cao, Wenwu
N1 - Funding Information:
This research was supported by National Natural Science Foundation of China (61505045, 81571720) and China Scholarship Council (201706125022).
Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017/12
Y1 - 2017/12
N2 - To eliminate the “decoupling” effect, which causes the fluorescence intensity ratios (FIR) to deviate from the pure Boltzmann distribution law, a correcting method for an upvonversion pumped system was theoretical derived and experimentally verified. Theoretical results indicated that the double exponential decay of the lower level was entirely involved in the decay of the upper level, which could be used to determine the thermal population degree (η). Taking Tm3+ ions as examples, by analyzing the temperature dependence of the fluorescent dynamic curves originating from the thermally coupled pair, the η values at different temperatures were obtained and the corresponding correcting curve is given. The corrected FIR abides by the Boltzmann law, even in the lower temperature range.
AB - To eliminate the “decoupling” effect, which causes the fluorescence intensity ratios (FIR) to deviate from the pure Boltzmann distribution law, a correcting method for an upvonversion pumped system was theoretical derived and experimentally verified. Theoretical results indicated that the double exponential decay of the lower level was entirely involved in the decay of the upper level, which could be used to determine the thermal population degree (η). Taking Tm3+ ions as examples, by analyzing the temperature dependence of the fluorescent dynamic curves originating from the thermally coupled pair, the η values at different temperatures were obtained and the corresponding correcting curve is given. The corrected FIR abides by the Boltzmann law, even in the lower temperature range.
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U2 - 10.1016/j.jlumin.2017.06.018
DO - 10.1016/j.jlumin.2017.06.018
M3 - Article
AN - SCOPUS:85021663543
SN - 0022-2313
VL - 192
SP - 184
EP - 187
JO - Journal of Luminescence
JF - Journal of Luminescence
ER -