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Regular version of the site

Article

Fine spectroscopy and Judd-Ofelt analysis of Pr3+ doped Sr0.7La0.3Mg0.3Al11.7O19 (Pr:ASL)

Journal of Luminescence. 2020. Vol. 219. P. 116895.
Sattayaporn S., Loiseau P., Aka G., Klimin S., Boldyrev K., Mavrin B.

Single crystals of Pr3+ doped hexa-aluminate Sr0.7La0.3Mg0.3Al12O19 (ASL) were prepared for spectroscopic
characterization. We investigated their optical spectroscopic properties in σ and π polarization of light. Absorption
spectra were recorded in extended spectral range, 400 nm–5400 nm. Energies of Pr3+ crystal field states
were determined. In addition to the major D3h sites, minor sites were found. Judd-Ofelt analysis was performed:
the J-O parameters Ωt were determined to be 1.06 x 10^-20 cm-2, 2.31 x 10^-20 cm-2 and 3.43 x 10^-20 cm-2 for
t = 2, 4 and 6, respectively. The radiative lifetime was 38 μs for the emitting state 3P0.