کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10714160 | 1025571 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Luminescence (M=Mn2+, Cu2+) and ESR (M=Gd3+, Mn2+, Cu2+) of Na2ZnP2O7: M
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Luminescence (M=Mn2+, Cu2+) and ESR (M=Gd3+, Mn2+, Cu2+) of Na2ZnP2O7: M Luminescence (M=Mn2+, Cu2+) and ESR (M=Gd3+, Mn2+, Cu2+) of Na2ZnP2O7: M](/preview/png/10714160.png)
چکیده انگلیسی
We report the synthesis of sodium zinc diphosphate (Na2ZnP2O7) using a domestic microwave oven (2.45Â GHz) and metal ion doped sodium zinc diphosphate (Na1.88Gd0.04ZnP2O7/Na1.92M0.04ZnP2O7 (M=Mn and Cu)) by a solid state metathesis reaction. All the materials were characterized by powder X-ray diffraction (XRD) and infrared spectroscopy (IR). These metal doped diphosphates were crystallized in a tetragonal lattice with space group P42/mnm. The IR spectra of all the samples were characterized by bands due to the P2O74â group. The powder electron spin resonance (ESR) spectrum of Na1.88Gd0.04ZnP2O7 gave a characteristic “U” type spectrum. The powder ESR spectrum of Na1.92Mn0.04ZnP2O7 consists of six lines while Na1.92Cu0.04ZnP2O7 gave a broad profile. All the doped metal ions occupy the Na+ site in the diphosphate lattice. The broad emission band at 614Â nm (red band) observed for Na1.92Mn0.04ZnP2O7 is assigned to an electronic transition T14(G4)âA16(S6) of Mn2+ in distorted octahedral coordination.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 407, Issue 12, 15 June 2012, Pages 2094-2099
Journal: Physica B: Condensed Matter - Volume 407, Issue 12, 15 June 2012, Pages 2094-2099
نویسندگان
B. Vijaya Kumar, M. Vithal,