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Elsevier, Chemical Physics Letters, 4-6(506), p. 201-204, 2011

DOI: 10.1016/j.cplett.2011.03.034

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Luminescence of the Cr3+ ions doped in PLZT ceramics

Journal article published in 2011 by T. P. J. Han, M. T. Jardiel ORCID, M. Villegas, A. C. Caballero, D. Bravo, F. Jaque
This paper is available in a repository.
This paper is available in a repository.

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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 ∼734 and 740nm and a broadband emission with a maximum at ∼1000nm. The two high energy bands have been assigned to the 2E(2T1)→4A2 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 4T2→4A2 transition and the emission of the Cr5+ ions’2E→2T2 transition.