کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1493972 1510792 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and photoluminescence spectroscopy of BaGeF6:Mn4+ red phosphor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Synthesis and photoluminescence spectroscopy of BaGeF6:Mn4+ red phosphor
چکیده انگلیسی


• Simple method was developed for synthesizing BaGeF6:Mn4+ red phosphor.
• Structural and luminescent properties of this phosphor was clarified.
• Comprehensive discussion is given on the Ba-IV–F6:Mn4+ phosphors.
• Raman scattering data were presented on Ba-IV–F6 hexafluorides.

We synthesized Mn4+-activated BaGeF6 red phosphor by the chemical reaction method from HF, H2SiF6, BaF2, KMnO4, and GeO2 powder. The structural and optical properties of BaGeF6:Mn4+ were investigated using X-ray diffraction analysis, secondary electron microscopy observation, electron spin resonance measurement, photoluminescence (PL), PL excitation (PLE) and Raman scattering spectroscopies, and luminescence decay time measurement. Temperature dependence of the PL intensity was measured from T = 20 to 500 K and analyzed by taking into consideration the Bose–Einstein phonon occupation number. The PLE spectra measured at T = 20 and 300 K and luminescence decay time at T = 20–460 K were also analyzed based on the Franck–Condon and conventional thermal quenching models, respectively. Comprehensive discussion was given on the Mn4+-related PL properties and Raman scattering behaviors in a family of the barium hexafluorometallate phosphors.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 42, April 2015, Pages 417–422
نویسندگان
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