کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10653209 | 1002850 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and luminescence behavior of Eu3+-doped CaF2 nanoparticles
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Luminescent Ca1âxF2+x:Eux nanoparticles were synthesized by a chemical co-precipitation method in an ethanol solution. The Ca1âxF2+x:Eux nanoparticles exhibit a sphere-like morphology with particle diameter of about 15-20Â nm. With increasing concentration of Eu3+ ion the intensity of XRD diffraction peaks decreased significantly and full width at half-maximum of the peaks increased gradually, which indicated that more Eu3+ ions resulted in the increase of structural defects. The emission spectrum of Ca1âxF2+x:Eux nanoparticles consisted of a few narrow, sharp lines corresponding to Eu3+ ions. The luminescence intensity of Ca1âxF2+x:Eux nanoparticles increased with increasing concentration of Eu3+ ion and reached a maximum at approximately 15Â mol%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 133, Issue 12, March 2005, Pages 775-779
Journal: Solid State Communications - Volume 133, Issue 12, March 2005, Pages 775-779
نویسندگان
Feng Wang, Xianping Fan, Daibo Pi, Minquan Wang,