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Eu2+激活的M7Mg2(SiO4)4C12(M=Ca,Sr,Ba)熒光性質(zhì)的研究
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Study on Luminescence Properties of M7Mg2(SiO4)4C12 (M=Ca, Sr, Ba) Activated by
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    摘要:

    采用高溫固相法合成Eu2+激活的堿土金屬氯硅酸鹽系熒光粉M7Mg2(SiO4)4C12: 0.08Eu2+(M=Ca,Sr,Ba)，研究了它們的熒光光譜。結(jié)果表明，3種熒光粉均為寬帶激發(fā)，激發(fā)帶位置分別在250~500 nm、250~450 nm、250~430 nm。討論了Eu2+離子的躍遷發(fā)射隨基質(zhì)組成的變化規(guī)律，隨著Ca、Sr、Ba離子半徑的依次增大，發(fā)射波長(zhǎng)逐漸向短波方向移動(dòng)，分別產(chǎn)生綠（507 nm）、藍(lán)(458、445 nm)不同顏色的發(fā)射光

    Abstract:

    The alkaline earth metal magnesium chlorosilicate M7Mg2(SiO4)4C12:0.08Eu2+(M=Ca,Sr,Ba) phosphors activated by Eu2+ were synthesized by high-temperature solid-state reaction, and the luminescence properties of the phosphors were studied. Results show that all the three phosphors have broadband excitation spectra with ranges of 250-500 nm, 250-450 nm, 250-430 nm, respectively. The composition dependence of the radiation transitions of Eu2+ in the host was discussed. The position of emission peak of Eu2+ moved to short-wavelength and the phosphors emit green (507 nm) and blue (458 nm, 445 nm) light with increasing of radius size of Ca, Sr and Ba ions in sequence

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吳 茜,陳永杰,曹發(fā)斌,李郎楷,楊 英. Eu2+激活的M7Mg2(SiO4)4C12(M=Ca, Sr, Ba)熒光性質(zhì)的研究[J].稀有金屬材料與工程,2010,39(4):664~667.[Wu Qian, Chen Yongjie, Cao Fabin, Li Langkai, Yang Ying. Study on Luminescence Properties of M7Mg2(SiO4)4C12 (M=Ca, Sr, Ba) Activated by[J]. Rare Metal Materials and Engineering,2010,39(4):664~667.]
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  • 收稿日期:2009-04-20
  • 最后修改日期:2010-01-25
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