Performance improvement of temperature sensor based on rare-earth ion fluorescence by using KBr-diluted phosphor

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

2 Scopus Citations
View graph of relations

Author(s)

  • Ning Yuan
  • Hong-Xue Sun
  • Zi-Bo Zhang
  • Qi Sun
  • Wing-Han Wong
  • Dao-Yin Yu
  • De-Long Zhang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)573-575
Journal / PublicationMaterials Letters
Volume185
Publication statusPublished - 15 Dec 2016

Abstract

We exemplify the Er(NbO3)3 phosphor to demonstrate that the performance of the temperature sensor based on thermal effect of fluorescence intensity ratio (FIR) of 980-nm-upconverted Er3+ green 530 and 550 nm emissions can be improved by using KBr-diluted phosphor. The sensing performance of the diluted phosphor plate was studied as a function of KBr:Er(NbO3)3 molar ratio from 0:1 to 100:1. The results show that the KBr dilution enables to enhance the fluorescence intensity and increase the temperature sensitivity. Meanwhile, the KBr itself does not affect either the Er3+ spectroscopic properties or the FIR value. There is an optimum KBr: Er(NbO3)3 molar ratio within 15:1 and 20:1, for which the 530 (550) nm signal increases by 30% (20%) and the relative sensitivity at the physiological temperature increases by 14%.

Research Area(s)

  • Fluorescence intensity ratio (FIR), KBr dilution, Optical temperature sensor, Sensing performance

Citation Format(s)

Performance improvement of temperature sensor based on rare-earth ion fluorescence by using KBr-diluted phosphor. / Yuan, Ning; Sun, Hong-Xue; Zhang, Zi-Bo; Sun, Qi; Wong, Wing-Han; Yu, Dao-Yin; Pun, Edwin Yue-Bun; Zhang, De-Long.

In: Materials Letters, Vol. 185, 15.12.2016, p. 573-575.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review