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Study on optical temperature sensing properties of β -NaYF 4 :Tm 3+ /Yb 3+ nanoparticles

Litao Liu,Lihong Cheng,Sai Xu,Xiaohui Qi,Zhilin Liu,Xuan Zhang,Baojiu Chen,Ruinian Hua

Materials Research Bulletin（2018）

Cited 28|Views19
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Abstract
The β-NaYF4:Yb3+, Tm3+ NPs were synthesized via a thermal decomposition method for the first time. It was found the sensitivity of UCNPs is higher than previous reported other rare-earth (Er3+, Nd3+, Pr3+, Sm3+, Dy3+) doped materials as a temperature sensor owing to the large energy level gap between the 3F2,3 and 3H4 of Tm3+ ions.
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Key words
β-NaYF4Tm3+/Yb3+,Upconversion nanoparticals,Temperature sensor
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