Lanthanide-doped NaGdF <inf>4</inf> core-shell nanoparticles for non-contact self-referencing temperature sensors

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Journal Article
Nanoscale, 2014, 6 (11), pp. 5675 - 5679
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We report that non-contact self-referencing temperature sensors can be realized with the use of core-shell nanostructures. These lanthanide-based nanothermometers (NaGdF 4 :Yb 3+ /Tm 3+ @Tb 3+ /Eu 3+ ) exhibit higher sensitivity in a wide range from 125 to 300 K based on two emissions of Tb 3+ at 545 nm and Eu 3+ at 615 nm under near-infrared laser excitation. © 2014 the Partner Organisations.
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