A novel red phosphor NaLa4(SiO4)(3)F Eu3+

通讯作者地址: Feng, G (通讯作者), Xiamen Univ, Dept Mat Sci & Engn, Xiamen 361005, Peoples R China 地址: 1. Xiamen Univ, Dept Mat Sci & Engn, Xiamen 361005, Peoples R China 2. Jingdezhen Ceram Inst, Sch Mat Sci & Engn, Jingdezhen 333001, Peoples R ChinaA novel red phosphor NaLa4(SiO4)(3)F Eu3+ was synthesized by the conventional solid-state reaction at 950 C for the first time The luminescence properties of NaLa4(SiO4)(3)F Eu3+ were investigated and the critical concentration of the activator concentration (Eu3+) was found to be 0 1 mol per formula unit The phosphor presented red luminescence under the ultraviolet excitation of 254 or 395 nm attributed to the transitions from D-5(0) excited states to F-7(J) (J=0-4) ground states of Eu3+ ions The results indicated that this newly developed phosphor could find applications in tricolor fluorescent lamp phosphor-liquid crystal displays and white lighting devices utilizing GaN-based excitation in the near UV (C) 2010 Elsevier BV All rights reserve

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