کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1495895 | 992949 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and spectroscopic studies of the MgxSr1−xAl2O4:Eu, Dy (x = 0.05–0.25) persistent phosphors
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
MgxSr1−xAl2O4:Eu, Dy (x = 0.05–0.25) phosphors were prepared by the solid-state reaction method; their excitation and emission spectra corresponding to the transitions between the ground 4f7 and excited 4f65d1 configurations of Eu2+ ion were studied. Broad band UV excited luminescence attributed to Eu2+ ions was observed around 19,500 cm−1 (513 nm). From the comparison between the excitation and emission spectra, the crystal field splitting of the Eu2+ 5d states and the parameters of electron–vibrational interaction, such as the Huang–Rhys factor, effective phonon energy, and zero-phonon line position for the studied compound were estimated for the first time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 32, Issue 10, August 2010, Pages 1329–1332
Journal: Optical Materials - Volume 32, Issue 10, August 2010, Pages 1329–1332
نویسندگان
K.S. Bartwal, H. Ryu, M.G. Brik, I. Sildos,