Influence of Flux on Structure and Luminescence of LaMgB5O10:Ce3+,Mn2+
来源期刊：JOURNAL OF RARE EARTHS2004年第5期
论文作者：常树岚
Key words：flux; luminescence; structural; rare earths;
Abstract: The influences of the flux KCl or KF on the XRD patterns,cell parameters,crystal morphology,and spectral properties of the phosphor 12.8% KCl and 5.3%,10.5% KF are added individually into the phosphor (La0.85Ce0.15)(Mg0.9Mn0.1) B5O10,some peaks of the XRD patterns are intensified and cell volumes are decreased. A small amount of Cu mono-crystal typed phase appears as more than 5% KCl is added. There are six hexagonal crystal-faces and eight triangular crystal-faces attributed to the {100} and {111} respectively. When 15% KCl is added into the phosphor,multi-faced regular crystals are formed and the crystal self-regulation appears. The emission intensity of 5d→4f(2F5/2,2F7/2) of Ce3+ and 4G→6S of Mn2+ increases up 3.41 and 2.36 times respectively.
常树岚1
(1.Department of Chemistry,Science and Engineering College,Yanbian University,Yanji 133002,China)
Abstract:The influences of the flux KCl or KF on the XRD patterns,cell parameters,crystal morphology,and spectral properties of the phosphor 12.8% KCl and 5.3%,10.5% KF are added individually into the phosphor (La0.85Ce0.15)(Mg0.9Mn0.1) B5O10,some peaks of the XRD patterns are intensified and cell volumes are decreased. A small amount of Cu mono-crystal typed phase appears as more than 5% KCl is added. There are six hexagonal crystal-faces and eight triangular crystal-faces attributed to the {100} and {111} respectively. When 15% KCl is added into the phosphor,multi-faced regular crystals are formed and the crystal self-regulation appears. The emission intensity of 5d→4f(2F5/2,2F7/2) of Ce3+ and 4G→6S of Mn2+ increases up 3.41 and 2.36 times respectively.
Key words:flux; luminescence; structural; rare earths;
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