Luminescence of the Cr3+ ions doped in PLZT ceramics

T. P. J. Han, M. T. Jardiel, M. Villegas, A. C. Caballero, D. Bravo, F. Jaque

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Abstract

The photoluminescence properties of Cr-doped PLZT-9/65/35 (Pb0.95La0.09Zr0.65Ti0.35O3) have been studied. The fluorescence spectra consist of two inhomogeneously broadened narrow bands centred at similar to 734 and 740 nm and a broadband emission with a maximum at similar to 1000 nm. The two high energy bands have been assigned to the E-2(T-2(1)) -> (4)A(2) transition of two Cr3+ defect centres in octahedral site with high/ intermediate crystal field strength whereas the near infrared emission is tentatively assigned to the overlapping of the broadband emission of the Cr3+ ions defect centre's T-4(2) -> (4)A(2) transition and the emission of the Cr5+ ions' E-2 -> T-2(2) transition. (c) 2011 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)201-204
Number of pages4
JournalChemical Physics Letters
Volume506
Issue number4-6
DOIs
Publication statusPublished - 20 Apr 2011

Keywords

  • photoluminescence
  • broadband emission
  • infrared emission
  • crystal field strength

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    Han, T. P. J., Jardiel, M. T., Villegas, M., Caballero, A. C., Bravo, D., & Jaque, F. (2011). Luminescence of the Cr3+ ions doped in PLZT ceramics. Chemical Physics Letters, 506(4-6), 201-204. https://doi.org/10.1016/j.cplett.2011.03.034