Photoluminescence properties of Eu-doped LaSr 2AlO 5

C. E. Rodríguez-García, N. Perea-López, O. Raymond, G. A. Hirata

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Red-orange luminescent ceramic disks of La 1-XEi 2S 5AIOs (x= 1.0, 3.0. 5.0 and 10.0 at%) were prepared by the combustion synthesis method and post-annealed at high temperature. Microstructure properties were characterized by using X-ray diffraction and scanning electron microscopy. The La 1-XEu XSr 2AIO 5 X-ray diffraction patterns revealed a tetragonal phase for all the ceramic disks. Morphological analysis of the disk grains showed a mean size of 4.27 jxm. Photoluminescence emission and excitation spectra were analyzed in detail. * The x= 10.0 at%. Eu-doped ceramic sample showed the highest photoluminescence emission intensity, with a strong emission peak located at A em1 = 617 nm and a broadband with maximum excitation peak of Λ ex = 322 nm.

Original languageEnglish (US)
Pages (from-to)563-567
Number of pages5
JournalScience of Advanced Materials
Volume4
Issue number5-6
DOIs
StatePublished - May 2012

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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