Dielectrics

Influence of temperature on the luminescence properties of undoped and Nd-doped CaMoO$_4$ and SrMoO$_4$ single crystals

F. D. Fedyunin^a, D. A. Spassky^bc, I. S. Voronina^d, L. I. Ivleva<sup>d

a</sup> Lomonosov Moscow State University, Faculty of Physics, Moscow, Russia
^b Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia
^c Institute of Physics, University of Tartu, Tartu, Estonia
^d Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia

Abstract: Luminescence properties of calcium and strontium molybdates, undoped as well as doped with Nd$^{3+}$ ions were studied. The influence of temperature on the energy transfer processes from the intrinsic emission centers to activator is shown on the basis of the analysis of the temperature dependencies of luminescence spectra and decay kinetics. It is concluded that the studied compounds are promising for non-contact luminescent thermometry in a wide temperature range.

Keywords: non-contact luminescence thermometry, energy transfer, luminescence, excitons, CaMoO$_4$:Nd$^{3+}$, SrMoO$_4$:Nd$^{3+}$.

Received: 04.07.2022
Revised: 04.07.2022
Accepted: 06.07.2022

DOI: 10.21883/FTT.2022.11.53329.419

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