کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5421917 | 1507895 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Probing growth dynamics of graphene/Ru(0001) and the effects of air exposure by means of helium atom scattering
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Probing growth dynamics of graphene/Ru(0001) and the effects of air exposure by means of helium atom scattering Probing growth dynamics of graphene/Ru(0001) and the effects of air exposure by means of helium atom scattering](/preview/png/5421917.png)
چکیده انگلیسی
The growth dynamics of graphene on Ru (0001) and the air stability of this interface have been studied by helium atom scattering. Graphene on Ru (0001) shows high reflectivity for impinging atomic (He) and molecular (H2) beams. The diffraction pattern shows the occurrence of peaks arising from the Moiré pattern. Air exposure reduces He-atom reflectivity, due to water dissociation at the graphene/metal interface and the subsequent formation of CH groups. However, upon annealing at 450Â K the reflectivity of pristine graphene has been recovered. The exposure to atomic hydrogen induces a reduction of the reflectivity by more than the 65% with respect to the initial value.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 634, April 2015, Pages 44-48
Journal: Surface Science - Volume 634, April 2015, Pages 44-48
نویسندگان
Antonio Politano,