NaGdF_4:Eu^(3+)晶体的水热合成制备与发光性能  

Hydrothermal Synthesis and Luminescence Properties of NaGdF_4:Eu～(3+) Crystals

作　　者：沈华翔[1] 王锋[1] 樊先平[1] 

机构地区：[1]浙江大学,浙江杭州310027

出　　处：《稀有金属材料与工程》2010年第S2期415-417,共3页Rare Metal Materials and Engineering

基　　金：浙江省科技计划项目资助(2006C14010;2008C21051)

摘　　要：用水热法合成Eu3+离子掺杂的NaGdF4晶体,考察不同反应物浓度、不同合成温度对NaGdF4晶体的微观结构、形貌和发光强度的影响。Eu3+离子5D0→7F2跃迁强度与产物中GdF3的含量密切相关,降低GdF3的含量能够显著提高Eu3+离子5D0→7F2跃迁的强度。Eu3+ doped NaGdF4 crystals were synthesized by hydrothermal methods. The effects of different temperatures and NaF concentration on the crystal structures and luminescence intensities were investigated. The intensity of 5D0→7F2 transition of Eu3+ ions was closely related with the amount of GdF3 phase. The reduction of GdF3 phase could substantially enhance the ratio of 5D0→7F2 transition and 5D0→7F1 transition of Eu3+.

关 键 词：NaGdF4晶体 Eu3+ 水热合成 发光 

分 类 号：TB34[一般工业技术—材料科学与工程]