Abstract
A theoretical study is performed of the dependence of the upconversion luminescence spectrum of YVO4:Yb,Er nanoparticles on the rate of nonradiative relaxation. Numerical calculations show that the intensities of green- and red-band luminescence vary over a wide range. The green band dominates when there are no multiphonon transitions, and the intensities redistribute in favor of the red band upon an increase in the rate of such transitions.
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This work was supported by the Russian Foundation for Basic Research, project nos. 19-02-00569a and 20-02-00545a.
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Translated by K. Utegenov
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Nikiforov, V.G. Nonradiative Relaxation and Luminescent Properties of Upconversion YVO4:Yb,Er Nanoparticles. Bull. Russ. Acad. Sci. Phys. 85, 1383–1388 (2021). https://doi.org/10.3103/S1062873821120248
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DOI: https://doi.org/10.3103/S1062873821120248