Er3+-sensitized upconversion emission of Tm3+via Yb3+-mediated energy migration for nanothermometry - Details

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Liu, R. (Liu, R..) ^[1] | Cheng, Y. (Cheng, Y..) ^[2] | Lin, H. (Lin, H..) ^[3] | Xu, J. (Xu, J..) ^[4] | Wang, Y.-S. (Wang, Y.-S..) ^[5]

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Abstract：

The　dedicated　control　of　lanthanide-mediated　energy　migration　within　a　nanostructure　can　help　realize　plenty　of　intriguing　luminescence　behaviors.　In　this　work,　an　Er3+-sensitized　upconversion　emission　of　Tm3+　by　means　of　Yb3+-mediated　energy　migration　has　been　firstly　realized　with　a　core/shell　nanostructure.　The　analysis　of　the　luminescence　thermal　behavior　of　the　nanostructure　indicates　that　the　heating-induced　alleviation　of　energy　migration-mediated　surface　quenching　leads　to　the　thermal　enhancement　of　Tm3+　emission,　while　the　green　emissions　of　Er3+　exhibit　thermal　quenching.　By　leveraging　the　thermal　quenching,　heating-induced　alleviation　of　surface　quenching　and　the　characteristic　of　thermally　coupled　levels,　specifically,　a　ratiometric　luminescent　nanothermometer　has　been　developed　via　the　combination　of　emissions　from　both　Tm3+　and　Er3+,　which　exhibits　a　high　relative　sensitivity　up　to　3.46%　K−1.　This　work　may　offer　a　promising　design　route　toward　luminescent　nanothermometers.　©　2025　The　Royal　Society　of　Chemistry.

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[ 1 ] [Liu R.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou, 350002, China
[ 2 ] [Liu R.]College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350108, China
[ 3 ] [Liu R.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350002, China
[ 4 ] [Cheng Y.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou, 350002, China
[ 5 ] [Lin H.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou, 350002, China
[ 6 ] [Lin H.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou, 350108, China
[ 7 ] [Xu J.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou, 350002, China
[ 8 ] [Wang Y.-S.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Fujian, Fuzhou, 350002, China

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Journal of Materials Chemistry C

ISSN： 2050-7526

Year： 2025

Issue： 12

Volume： 13

Page： 6033-6040

5 . 7 0 0

JCR@2023

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