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

Ning Yuan; Hong-Xue Sun; Zi-Bo Zhang; Qi Sun; Wing-Han Wong; Dao-Yin Yu; Edwin Yue-Bun Pun; De-Long Zhang

doi:10.1016/j.matlet.2016.09.081

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)

City University of Hong Kong

Detail(s)

Original language	English
Pages (from-to)	573-575
Journal / Publication	Materials Letters
Volume	185
Publication status	Published - 15 Dec 2016

Link(s)

DOI	DOI https://doi.org/10.1016/j.matlet.2016.09.081 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84988883112&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(b5ee4075-d2e0-47fb-8390-b940958a2192).html

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)

[ RIS ] [ BibTeX ]

Performance improvement of temperature sensor based on rare-earth ion fluorescence by using KBr-diluted phosphor. / Yuan, Ning; Sun, Hong-Xue; Zhang, Zi-Bo et al.
In: Materials Letters, Vol. 185, 15.12.2016, p. 573-575.

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

Yuan, N, Sun, H-X, Zhang, Z-B, Sun, Q, Wong, W-H, Yu, D-Y, Pun, EY-B & Zhang, D-L 2016, 'Performance improvement of temperature sensor based on rare-earth ion fluorescence by using KBr-diluted phosphor', Materials Letters, vol. 185, pp. 573-575. https://doi.org/10.1016/j.matlet.2016.09.081

Yuan, N., Sun, H.-X., Zhang, Z.-B., Sun, Q., Wong, W.-H., Yu, D.-Y., Pun, E. Y.-B., & Zhang, D.-L. (2016). Performance improvement of temperature sensor based on rare-earth ion fluorescence by using KBr-diluted phosphor. Materials Letters, 185, 573-575. https://doi.org/10.1016/j.matlet.2016.09.081

Yuan N, Sun HX, Zhang ZB, Sun Q, Wong WH, Yu DY et al. Performance improvement of temperature sensor based on rare-earth ion fluorescence by using KBr-diluted phosphor. Materials Letters. 2016 Dec 15;185:573-575. doi: 10.1016/j.matlet.2016.09.081

Yuan, Ning ; Sun, Hong-Xue ; Zhang, Zi-Bo et al. / Performance improvement of temperature sensor based on rare-earth ion fluorescence by using KBr-diluted phosphor. In: Materials Letters. 2016 ; Vol. 185. pp. 573-575.