کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8161024 | 1525114 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Host sensitized near-infrared emission in Nd3+ doped different alkaline-sodium-phosphate phosphors
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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: Host sensitized near-infrared emission in Nd3+ doped different alkaline-sodium-phosphate phosphors Host sensitized near-infrared emission in Nd3+ doped different alkaline-sodium-phosphate phosphors](/preview/png/8161024.png)
چکیده انگلیسی
Near-infrared (NIR) emitting phosphors of different alkaline based sodium-phosphate (MNa[PO4], where M = Mg, Ca, Sr and Ba were prepared by a conventional solution combustion method with fixed doping concentration of Nd3+ (1.0Â mol%). The phosphors were characterized by powder X-ray diffraction, field emission scanning electron microscope, Fourier transform infrared spectroscopy, UV-vis spectroscopy and fluorescent spectrophotometry. The optical properties including reflectance, excitation and emission were investigated. The excitation spectra of the phosphors were characterized by a broadband extending from 450 to 900Â nm. Upon excitation with a wavelength of 580Â nm, the phosphor emits intensely infrared region at 872Â nm, 1060Â nm and 1325Â nm which correspond to the 4F3/2 â 4I9/2, 4F3/2 â 4I11/2 and 4F3/2 â 4I13/2 transitions of Nd3+ ions and were found to vary for the different hosts. The strongest emission wavelength reaches 1060Â nm. The most intense emission of Nd3+ was observed from Ca2+ incorporated host. The down conversion emissions of the material fall in the NIR region suggesting that the prepared phosphors have potential application in the development of photonic devices emitting in the NIR.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 535, 15 April 2018, Pages 29-34
Journal: Physica B: Condensed Matter - Volume 535, 15 April 2018, Pages 29-34
نویسندگان
A. Balakrishna, H.C. Swart, R.E. Kroon, O.M. Ntwaeaborwa,