Luminescence of the Cr3+ ions doped in PLZT ceramics
- Resource Type
- Article
- Authors
- Han, T.P.J.; Jardiel, M.T.; Villegas, M.; Caballero, A.C.; Bravo, D.; Jaque, F.
- Source
- Chemical Physics Letters. Apr2011, Vol. 506 Issue 4-6, p201-204. 4p.
- Subject
- *PHOTOLUMINESCENCE
*CHROMIUM ions
*CERAMIC materials
*ELECTRIC properties
*FLUORESCENCE spectroscopy
*CRYSTAL defects
*INFRARED radiation
- Language
- ISSN
- 0009-2614
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 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 transition and the emission of the Cr5+ ions’ transition. [Copyright &y& Elsevier]