Luminescence Property and Phase-Separation Texture of Phase-Separated Glasses and Glass-Ceramics in Mn-Doped ZnO-SiO2 System

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概要

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• In order to achieve fine phosphor materials with high efficiency, phase-separated glasses and glass-ceramics in Mn-doped ZnO-SiO2 system, of which composition was xZnO-(100-x)SiO2 mol% (x=10, 20, 30) in the immiscibility region, were prepared by melting and subsequent heat-treatment process. All the melt-quenched glasses were phase-separated into two phases, i.e. a ZnO-rich phase and a SiO2-rich one. The SiO2-rich particles were formed into the ZnO-rich phase in the composition of x=20 and x=30, while the ZnO-rich particles were formed in the SiO2-rich phase in the composition of x=10. The melt-quenched glass showed the orange-emission at around 625 nm of its peak wavelength. After the heat-treatment on the melt-quenched glasses, the Zn2SiO4 (willemite) phase were precipitated, and the glass-ceramics gave strong green-emission at around 525 nm. The intensity of the green-emission of the glass-ceramics in the composition of x=10 was higher than those in the composition of x=20 and x=30 in spite of the same amount of precipitated Zn2SiO4 phase.

著者

• OHGAKI Takeshi

  Faculty of Industrial Science and Technology, Tokyo University of Science

• YASUMORI Atsuo

  Faculty of Industrial Science and Technology, Tokyo University of Science

• NAGUMO Yosuke

  Faculty of Industrial Science and Technology, Tokyo University of Science

• SOGA Kohei

  Faculty of Industrial Science and Technology, Tokyo University of Science

関連論文

• Luminescence Property and Phase-Separation Texture of Phase-Separated Glasses and Glass-Ceramics in Mn-Doped ZnO-SiO2 System
• Crystallinity and Polarity of Indium Nitride Films Grown on the c-face of Zinc Oxide

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