کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5458483 | 1516174 | 2017 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of (Mn-Co) co-doping on the structural, morphological, optical, photoluminescence and electrical properties of SnO2
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Mn and Mn-Co doped SnO2 have been successfully synthesized using co-precipitation technique. The structural properties and surface morphology were studied using x-ray diffractometer (XRD) and scanning electron microscopy (SEM) respectively. Composition analysis of the samples has been carried out from EDX data. Optical properties were studied using reflectance spectroscopy in the wavelength range 200Â nm-800Â nm and IR absorption spectroscopy in the wave number range 400Â cmâ1-4000Â cmâ1. Reflectance spectra revealed that the band gap of prepared samples changes with doping concentration and found to be in the range 3.91Â eV-3.95Â eV. Infrared (IR) absorption spectra describe the different mode of band related to a functional group present in the materials. Mn and Mn-Co doped SnO2 exhibit very strong emission near the wavelength 413Â nm and 434Â nm. DC resistivity measurement shows that the activation energy increases with increasing concentration of dopant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 720, 5 October 2017, Pages 502-509
Journal: Journal of Alloys and Compounds - Volume 720, 5 October 2017, Pages 502-509
نویسندگان
Naseem Ahmad, Shakeel Khan,