کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5397569 | 1505871 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and optical properties of Y2Mo4O15 doped by Pr3+
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis and optical properties of Y2Mo4O15 doped by Pr3+ Synthesis and optical properties of Y2Mo4O15 doped by Pr3+](/preview/png/5397569.png)
چکیده انگلیسی
A set of Y2Mo4O15 compounds doped with 0.1-30% Pr3+ was synthesized by conventional high temperature solid state synthesis. The structural, morphological and optical characteristics of the compounds were investigated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) analysis, thermal quenching (TQ), photoluminescence (PL) and fluorescence lifetime techniques. It turned out that Pr3+ emission spectra are very sensitive to the concentration and temperature in the Y2Mo4O15 host matrix. Samples showed mainly red and deep red luminescence when excited with blue radiation. A severe concentration quenching was observed in samples with higher Pr3+ content due to cross relaxation. Y2Mo4O15:Pr3+ luminescent materials possess rather unique emission spectra, which can be tuned by adopting the appropriate Pr3+ concentration and/or temperature. Thus these materials could be used as luminescent security markers where such properties are desirable.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 190, October 2017, Pages 525-530
Journal: Journal of Luminescence - Volume 190, October 2017, Pages 525-530
نویسندگان
Indre Mackeviciute, Ausra Linkeviciute, Arturas Katelnikovas,