Melt synthesis of oxide red phosphors La2WO6:Eu 3+

Tadashi Ishigaki, Nobuhiro Matsushita, Masahiro Yoshimura, Kazuyoshi Uematsu, Kenji Toda, Mineo Sato

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

To synthesize various complex oxide materials and their solid solutions, we have applied a novel "melt-synthesis technique" rather than conventional solid-state reaction techniques. The synthesis of well-crystalline multi-component phosphor materials is sometimes difficult using conventional solid-state reaction techniques because the reaction rates are slow as a result of slow mutual diffusion among solid-state species, thereby creating an inhomogeneous product. However, the melt reaction is rapid and homogeneous as it proceeds because of a solution reaction with fast diffusion. Red-phosphor La2WO6:Eu3+ samples with 25 mol% Eu 3+ were prepared in a short time using melt synthesis. Red emission was observed at 618 nm typical for the Eu3+ center. Melt-synthesized samples exhibited much higher emission intensities than those obtained for the sample prepared using a solid-state reaction.

Original languageEnglish
Pages (from-to)587-601
Number of pages15
JournalPhysics Procedia
Volume2
Issue number2
DOIs
Publication statusPublished - 2009 Aug
Event2008 International Conference on Luminescence and Optical Spectroscopy of Condensed Matter, ICL'08 - Lyon, France
Duration: 2008 Jul 72008 Jul 11

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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