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A biological nano-thermometer based on ratiometric luminescent Er3+/Yb3+-codoped NaGd(WO4)2 nanocrystals

  • Ning Yuan
  • , Da-Yu Liu
  • , Xiao-Chen Yu
  • , Hong-Xue Sun
  • , Cheng-Guo Ming
  • , Wing-Han Wong
  • , Feng Song
  • , Dao-Yin Yu
  • , Edwin Yue-Bun Pun
  • , De-Long Zhang*
  • *Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

We report a nano-thermometer based on ratiometric method of green 530 and 550 nm luminescence of Er3+/Yb3+-codoped NaGd(WO4)2 nanocrystals for temperature sensing of biological tissues and cells. The thermometer has simple structure and displays excellent sensing performance with a relative sensitivity 1.2% K-1, a thermal resolution 0.5 K at the physiological temperature 310 K, and a large signal-to-noise ratio. In parallel, the luminescence temperature characteristics were also studied by a spectrometer, and consistent results were obtained.
Original languageEnglish
Pages (from-to)337-340
JournalMaterials Letters
Volume218
Online published3 Feb 2018
DOIs
Publication statusPublished - 1 May 2018

Research Keywords

  • Sensors
  • Nanocrystalline materials
  • Luminescence
  • Thermal properties
  • UP-CONVERTED LUMINESCENCE
  • LOW-COST
  • TEMPERATURE
  • GLASS
  • NANOTHERMOMETERS
  • PHOSPHOR
  • COMPACT
  • SENSOR

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