Apart from such applications as modern persistent phosphors or scintillators, novel lighting solutions, and others, luminescence thermometry belongs to the most intensely developing research areas of luminescent materials. Luminescence thermometry offers a continuous real time temperature readout with high spatial resolution, universality of application and tolerance to electromagnetic field or harsh conditions. This opens the pathway for applications in a wide spectrum of fields, from modern machine technologies to sophisticated biomedical imaging. In luminescence thermometry, the required temperature operating range is entirely defined by the application considered. In bio- or medical uses, only a narrow range of physiological temperatures is of interest. On the other hand, aerospace, or surface temperature distribution may easily require measuring temperature over wide ranges, at least several hundred degrees. In this presentation, we will show that luminescence thermometers working in unprecedentedly broad operating range can be effectively constructed.
Supported by the National Science Center (#UMO-2020/37/N/ST5/02507)