Lanthanide-doped NaGdF4 core-shell nanoparticles for non-contact self-referencing temperature sensors.


We report that non-contact self-referencing temperature sensors can be realized with the use of core-shell nanostructures. These lanthanide-based nanothermometers (NaGdF4: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… (More)
DOI: 10.1039/c4nr00432a

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