کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5398229 | 1505885 | 2016 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Violet emission from Fe doped ZnO nanoparticles synthesized by precipitation method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Violet emission from Fe doped ZnO nanoparticles synthesized by precipitation method Violet emission from Fe doped ZnO nanoparticles synthesized by precipitation method](/preview/png/5398229.png)
چکیده انگلیسی
In this article we have reported the synthesis of Fe doped zinc oxide nanoparticles by the chemical precipitation method. The structural, compositional and optical properties have been examined by powder X-ray diffractometer, scanning electron microscope, transmission electron microscope, ultraviolet-visible and spectrophotometer. X-ray diffraction analysis confirmed the crystallites are in nanometer size and the sample contains polycrystals with hexagonal wurtzite structure. The average crystallite size has been found to increase from 25Â nm to 36Â nm with increase in Fe concentration. Scanning electron microscope result also confirmed the nanosize of the particles. Ultraviolet-visible spectrum of Fe doped zinc oxide shows a red shift with respect to undoped zinc oxide. The band gap of the samples was calculated from ultraviolet-visible spectrum and it is narrow from 3.30Â eV to 3.23Â eV with increasing Fe dopant upto 6%. The stretching bonds in Zn- Fe-O have been observed in FTIR spectra.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 176, August 2016, Pages 6-14
Journal: Journal of Luminescence - Volume 176, August 2016, Pages 6-14
نویسندگان
S. Kanchana, M. Jay Chithra, Suhashini Ernest, K. Pushpanathan,