کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10428434 | 909209 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optical and structural properties of Mn doped MgO powders synthesized by Sol-gel process
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
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چکیده انگلیسی
Magnesium oxide (MgO) powders doped with different amounts of manganese (Mn2+) ions were synthesized by sol-gel process. The Mn concentration was changed from 0 to 5%. Here we attempted to fabricate Mn doped MgO samples and characterized them for their optical and structural properties. The Ultraviolet-Visible analysis (UV-vis), infrared spectroscopy (FT-IR) and powder X-ray diffraction (XRD) have been used to characterize the optical properties, phase evolution and crystallinity of the obtained samples. X-ray diffraction patterns revealed that MgO powders obtained were crystallized. The crystallite size of the obtained MgO powders is around 337.9 Ǻ. The transmittance has decreased from 98 to 65% and the band gap of pure MgO has been found to 4.05 eV and it is shifted to 3.92 eV for 5% Mn doped MgO. The results obtained in this study were discussed comparatively with those cited in the literature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 127, Issue 20, October 2016, Pages 8253-8258
Journal: Optik - Volume 127, Issue 20, October 2016, Pages 8253-8258
نویسندگان
Kadari Ahmed, Mostefa Rabah, Mahi Khaled, Badaoui Mohamed, Mebarek Mokhtar,