Issue 105, 2015

Optical temperature sensing of rare-earth ion doped phosphors

Abstract

Accurate and reliable temperature measurement of many special inaccessible objects is a challenging task. Optical temperature sensing is a promising method to achieve it. The current status of optical thermometry of rare-earth ion doped phosphors is reviewed in detail. Based on the mechanisms of optical temperature sensing of different phosphors, temperature dependent luminescence spectra, the fluorescence intensity ratio technique in the data fitting process, and errors of the energy difference between thermally coupled levels, we describe the recent developments in the use of optical thermometry materials. The most important results obtained in each case are summarized, and the main challenges that we need to overcome are discussed. Research in the field of phosphor sensors has shown that they have significant advantages compared to conventional sensors in terms of their properties like greater sensitivity, freedom from electromagnetic interference, long path monitoring, and independence of compatibility with electronic devices.

Graphical abstract: Optical temperature sensing of rare-earth ion doped phosphors

Article information

Article type
Review Article
Submitted
22 Aug. 2015
Accepted
28 Sept. 2015
First published
28 Sept. 2015

RSC Adv., 2015,5, 86219-86236

Optical temperature sensing of rare-earth ion doped phosphors

X. Wang, Q. Liu, Y. Bu, C. Liu, T. Liu and X. Yan, RSC Adv., 2015, 5, 86219 DOI: 10.1039/C5RA16986K

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