Spectroscopic properties of ErAl3(BO3)4 single crystal

• Published in: Chemical physics 2014-01, Vol.428, p.137-143
• Main Authors: Malakhovskii, A.V., Kutsak, T.V., Sukhachev, A.L., Aleksandrovsky, A.S., Krylov, A.S., Gudim, I.A., Molokeev, M.S.
• Format: Article
• Language: English
• Subjects: Er3; Judd–Ofelt analysis; Luminescence; Rare earth compounds; Spectroscopic properties
• ISSN: 0301-0104
• DOI: 10.1016/j.chemphys.2013.11.008

[Display omitted] •Polarized absorption spectra of the stoichiometric crystal ErAl3(BO3)4.•Judd–Ofelt parameters of the f–f transitions.•Spectroscopic characteristics of the f–f transitions.•Emission spectra, due to transitions between excited states including.•The most intensive luminescence observed at 548nm. Single crystal of ErAl3(BO3)4 was grown and its structure was studied. Polarized absorption spectra of ErAl3(BO3)4 single crystal were measured in the spectral range 1670–330nm (6000–30000cm−1). The Judd–Ofelt spectroscopic parameters have been determined: Ω2=4.87×10−20cm2, Ω4=2.49×10−20cm2, Ω6=2.72×10−20cm2. These parameters have been used to calculate the radiative transition probabilities, the multiplet luminescence branching ratios and the fluorescence life times of the manifolds. The luminescence spectra due to transitions 2H11/2→4I15/2 (526nm), 4S3/2→4I15/2 (548nm), 4F9/2→4I15/2 (662nm), 2H11/2→4I13/2+4I9/2→4I15/2 (800nm) and 4S3/2→4I13/2 (855nm) were recorded in α, σ and π polarizations. The most intensive luminescence belonged to 4S3/2→4I15/2 transition (548nm).