کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1561142 | 1513935 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Molecular dynamics study on the bending rigidity of graphene nanoribbons
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک محاسباتی
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چکیده انگلیسی
The electromechanical responses of a graphene nanoribbon, such as its ripple magnitude, bending rigidity and effective spring constant, were investigated via classical molecular dynamics simulations and the elastic plate theory with a view to future engineering applications of graphene-nanoribbon-based nanoelectromechanical devices. While the bending rigidity was low for large ripples, it was high for very small ripples. However, on most ripple scales, the values of the bending rigidity remained constant around 2.3Â eV. The bending rigidity gradually increased from about 1.2 to 2.37Â eV with increasing deflection, after that, the bending rigidity slightly decreased to 2.29Â eV with further increases in deflection, and finally rapidly increased to 2.93Â eV with increasing deflection until the breaking point. The effective spring constant increased to 0.36Â N/m with increasing applied force and deflection, in the linear elastic region it remained below â¼0.25Â N/m.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 74, June 2013, Pages 107-113
Journal: Computational Materials Science - Volume 74, June 2013, Pages 107-113
نویسندگان
Jeong Won Kang, Sangkil Lee,