کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1521991 995301 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tuning of crystal quality and optical properties of hydrothermally synthesized ZnO nanorods by magnetic field
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Tuning of crystal quality and optical properties of hydrothermally synthesized ZnO nanorods by magnetic field
چکیده انگلیسی
This study systematically investigates the effects of magnetic field on the defects suppression in hydrothermally synthesized ZnO nanorods. A clear correlation between the crystalline quality and magnetic field-induced suppression of defect-related emission intensity is demonstrated. The density of defects in the nanorods is reduced by increasing the strength of the applied magnetic field, drastically reducing the intensity of visible photoluminescence. The mechanism of the magnetic field-induced suppression of defect-related emissions in hydrothermally synthesized nanorods is explained by a model-based analysis of the paths of the electrical currents and the resulting Lorentz force in the related neighboring pair of rolling cellular patterns that are generated from Rayleigh-Benard convection. This work provides a new means of controlling the defects in nanomaterials, improving the crystalline quality of such materials, and thereby adjusting their light-emitting properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 148, Issue 3, 15 December 2014, Pages 1113-1118
نویسندگان
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