کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1813976 1025643 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Photoluminescence in MgxSr1−xAl2O4:Eu2+, Nd3+and electron–vibrational interaction in the Eu2+ 5d states
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Photoluminescence in MgxSr1−xAl2O4:Eu2+, Nd3+and electron–vibrational interaction in the Eu2+ 5d states
چکیده انگلیسی

Green phosphor compositions MgxSr1−xAl2O4:Eu, Nd (with x=0.05–0.25) were prepared by solid state reaction method. The effect of Mg substitution on photoluminescence characteristics was investigated. The photoluminescence show intense green emission for MgSrAl2O4:Eu2+, Nd3+ with long persistence. This green emission corresponds to transitions from 4f65d1 to 4f7 of Eu2+ ion. Comparative analysis of the excitation and emission spectra were used to evaluate the crystal field splitting of the 5d states of Eu2+ and the parameters of electron–vibrational interaction, such as Huang–Rhys factor, effective phonon energy, and zero-phonon line position.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 404, Issue 20, 1 November 2009, Pages 3440–3444
نویسندگان
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