Stabilization of novel high temperature phase yellow-emitting σ-type (Ba1-: X - YEuxMgy)2P2O7 phosphors using a melt synthesis technique

H. Nakagawa, S. W. Kim, T. Hasegawa, S. Hasegawa, T. Ishigaki, K. Uematsu, K. Toda, H. Takaba, M. Sato

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Abstract

Novel Eu2+-activated phosphate phosphors based on high-temperature phase σ-Ba2P2O7, which is an unstable phase at room temperature, were synthesized for the first time by a melt synthesis technique using an arc-imaging furnace. By doping Mg2+ into the host lattice, Eu2+-activated σ-Ba2P2O7 phosphors were successfully obtained in a single phase form of a hexagonal structure and the emission intensity was also effectively enhanced. The relative emission peak intensity of the σ-(Ba0.67Eu0.03Mg0.30)2P2O7 phosphor was 315% of that for the σ-(Ba0.97Eu0.03)2P2O7 phosphor. The emission color tunable from green emission with a peak at 516 nm to yellow emission with a peak at 551 nm can be achieved by controlling the Mg2+ content in the σ-(Ba0.97-yEu0.03Mgy)2P2O7 phosphors.

Original languageEnglish
Pages (from-to)1562-1567
Number of pages6
JournalInorganic Chemistry Frontiers
Volume4
Issue number9
DOIs
Publication statusPublished - 2017 Sep
Externally publishedYes

ASJC Scopus subject areas

  • Inorganic Chemistry

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