Journal
RSC ADVANCES
Volume 5, Issue 105, Pages 86219-86236Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra16986k
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Funding
- National Natural Science Foundation of China [11404171, 11374162]
- Natural Science Youth Foundation of Jiangsu Province [BK20130865]
- Six Categories of Summit Talents of Jiangsu Province of China [2014-XCL-021]
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [14KJB430020]
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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.
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