کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1644207 1517262 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication, magnetic anisotropy and tunable fluorescence of amorphous LaxCuyOz nanowire arrays
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Fabrication, magnetic anisotropy and tunable fluorescence of amorphous LaxCuyOz nanowire arrays
چکیده انگلیسی


•   LaxCuyOz nanowire arrays with average diameters 90s and lengths 5μm have beenprepared..
• LaxCuyOz nanowire arrays exhibit obvious magnetic anisotropic behavior.
• Fluorescent intensity of Tb3+, Eu3+, Sm3+-doped products can be effective tuned by doping content.
• The respective contribution of La and Cu elements to the fluorescent intensity was investigated.

The amorphous LaxCuyOz nanowire arrays (NWAs) with average diameter 90 nm and lengths 5 μm have been prepared by chemical co-precipitation assisted by subatmospheric pressure suction filtration (SPSF) in porous anodic aluminum oxide (AAO) template. There is obvious magnetic anisotropy in LaxCuyOz NWAs, and unusual easily magnetized direction is perpendicular to the axis of nanowire. The tunable fluorescence of rare earth (Re=Tb, Eu, Sm) doped LaxCuyOz NWAs and the respective contribution of La and Cu to the fluorescence of NWAs were investigated, the results show that the fluorescent intensity of Eu, Tb, Sm-doped LaxCuyOz NWAs increased with accession of dopant contain different mole percents. The intensity of emission peaks gradually increased with Eu from 2 to 50 mol% at 591 nm, Sm from 2 to 50 mol% at 610 nm or achieved to maximum at 542 nm when doping content of Tb is 5 mol%. Furthermore, La exhibit facilitation or Cu present inhibition to fluorescent intensity of NWAs.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 126, 1 July 2014, Pages 39–42
نویسندگان
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