Synthesis and emission analysis of RE3+ (Eu3+ or Dy3+):Li2TiO3 ceramics

The development and photoluminescence analysis of Eu3+ or Dy3+ ions in the matrix of lithium titanate (Li2TiO3) ceramics using a solid state reaction method are reported. Emission spectra of Eu3+:Li2TiO3 ceramics showed strong red emission at 611 nm (5D0 to 7F2) with lambda(exci) = 392 nm (7F0 to 5L...

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Bibliographic Details
Published in:Ceramics international Vol. 35; no. 1; pp. 521 - 525
Main Authors: Kumar, G. Bhaskar, Buddhudu, S.
Format: Journal Article
Language:English
Published: 01-01-2009
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Summary:The development and photoluminescence analysis of Eu3+ or Dy3+ ions in the matrix of lithium titanate (Li2TiO3) ceramics using a solid state reaction method are reported. Emission spectra of Eu3+:Li2TiO3 ceramics showed strong red emission at 611 nm (5D0 to 7F2) with lambda(exci) = 392 nm (7F0 to 5L6) and from the Dy3+:Li2TiO3, a blue emission at 493 nm (4F9/2 to 6H15/2) and also a yellow emission at 582 nm (4F9/2 to 6H13/2) were seen with lambda(exci) = 366 nm (6H15/2 to 6P5/2). Both the rare-earth ion-containing ceramics displayed brighter emission performance from their measured spectral results. XRD, FTIR spectroscopy, SEM and EDAX were used to characterise the structural properties of (Eu3+ or Dy3+):Li2TiO3 ceramics. 3
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ISSN:0272-8842
DOI:10.1016/j.ceramint.2007.09.107