Facile combustion route for low-temperature preparation of Sr 2SiO4:Eu2+ phosphor and its photoluminescence properties

Bingfu Lei, Ken Ichi Machida, Takashi Horikawa, Hiromasa Hanzawa

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29 Citations (Scopus)

Abstract

Uniform and nanosized phosphors of Sr2SiO4:Eu 2+ were successfully synthesized by a simple, inexpensive, and relatively low-temperature synthesis route using the combustion method. Through the chemical reaction of Sr(NO3)2, Eu(NO3) 3, and fumed silica, the pure phase of nanosized Sr 2SiO4:Eu2+ was obtained by sintering at 800°C for 3min. The crystallinity and morphology of the as-synthesized Sr2SiO4:Eu2+ powders were characterized by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The particle size of the Sr 2SiO4:Eu2+ powders was distributed in a range of 30-50nm. Furthermore, their photoluminescence and luminescence decay properties were also systemically discussed and compared with those of Sr 2SiO4:Eu2+ phosphor prepared by a conventional high-temperature solid-state reaction method. The luminescence decay curves indicated that the distribution of Eu2+ ions in the nanosized Sr 2SiO4 powders was in a nearly homogeneous average local environment.

Original languageEnglish
Article number095001
JournalJapanese Journal of Applied Physics
Volume49
Issue number9 PART 1
DOIs
Publication statusPublished - 2010 Sept

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