Luminescence thermometers are widely known to provide contactless and noninvasive temperature sensing when traditional thermometers are useless. Their operation principle is based on the monitoring of the chosen temperature dependent luminescence parameter. The vast majority of known luminescence thermometers use one parameter to define temperature, while multimode sensors, which could broaden the working range and improve thermometric characteristics, are still rare. We report on YVO4:Er3+ 0.1 at.% sample as a thermal sensor in 299–466 K range with multiple sensing techniques utilized luminescence intensity ratio, spectral line position and bandwidth. These temperature dependent parameters were obtained from both emission and excitation spectra. The relative thermal sensitivity was varied from 0.34 to 2.61% K−1 at room temperature depending on the chosen luminescence parameter. All studied sensing methods provide sub-degree temperature resolution.

Original languageEnglish
Article number117828
Number of pages6
JournalJournal of Luminescence
Volume231
DOIs
StatePublished - Mar 2021

    Research areas

  • Er, Luminescence thermometry, Multimode sensing, Single band ratiometric approach, NANOPARTICLES, DOPED LAF3, CHARGE-TRANSFER BAND, TEMPERATURE, STRATEGY, SENSITIVITY, NANOTHERMOMETERS, NONCONTACT

    Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Biophysics
  • Biochemistry

ID: 86367598