Photoluminescent properties of Sr2SiO4:Eu3+ and Sr2SiO4:Eu2+ phosphors prepared by solid-state reaction method
来源期刊：Journal of Rare Earths2009年第2期
论文作者：乔艳敏 张鑫博 叶晓 陈艳 郭海
文章页码：323 - 326
摘 要：Eu2+ and （or） Eu3+ doped Sr2SiO4 phosphors particles were synthesized by a conventional solid-state reaction technique, and their structural and optical properties were investigated. The X-ray diffraction （XRD） results showed that the obtained phosphors were composed of orthorhombic α’-Sr2SiO4 and monoclinic β-Sr2SiO4 phase. When excited under 256 nm, Sr2SiO4:Eu3+ phosphors showed intense emission in the red region. Sr2SiO4:Eu3+ phosphors exhibited white emissions （x=0.30, y=0.40, TC=6500 K） ranging from 425 to 650 nm when it was excited by near-ultraviolet （near-UV） light, indicating that Sr2SiO4:Eu2+ was a good light-conversion phosphor candidate for near-UV chip.
乔艳敏1，张鑫博1，叶晓1，陈艳1，郭海1,2
1. Department of Physics,Zhejiang Normal University,Jinhua 321004,China2. Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces,Institute of Physical Chemistry,Zhejiang Normal University,Jinhua 321004,China
摘 要：Eu2+ and （or） Eu3+ doped Sr2SiO4 phosphors particles were synthesized by a conventional solid-state reaction technique, and their structural and optical properties were investigated. The X-ray diffraction （XRD） results showed that the obtained phosphors were composed of orthorhombic α’-Sr2SiO4 and monoclinic β-Sr2SiO4 phase. When excited under 256 nm, Sr2SiO4:Eu3+ phosphors showed intense emission in the red region. Sr2SiO4:Eu3+ phosphors exhibited white emissions （x=0.30, y=0.40, TC=6500 K） ranging from 425 to 650 nm when it was excited by near-ultraviolet （near-UV） light, indicating that Sr2SiO4:Eu2+ was a good light-conversion phosphor candidate for near-UV chip.
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