4.8 Article

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

Journal

NANOSCALE
Volume 6, Issue 11, Pages 5675-5679

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nr00432a

Keywords

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Funding

  1. National Natural Science Foundation of China [51132004, 51102209]
  2. National Basic Research Program of China [2011CB808100]
  3. Program for Changjiang Scholars and Innovative Research Team in University

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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 (NaGdF4:Yb3+/Tm3+@Tb3+/Eu3+) exhibit higher sensitivity in a wide range from 125 to 300 K based on two emissions of Tb3+ at 545 nm and Eu3+ at 615 nm under near-infrared laser excitation.

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