کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1690314 1518972 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of graphene together with undesired CuxO nanodots on copper foils by low-pressure chemical vapor deposition
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
Synthesis of graphene together with undesired CuxO nanodots on copper foils by low-pressure chemical vapor deposition
چکیده انگلیسی


• Composite film composed of graphene and CuxO nanodots is fabricated on Cu foil.
• The composition and the quality of the films were tuned by controlling growth parameters.
• Single layer graphene obtained.

The synthesis of graphene on Cu foils has been carried out using a low-pressure chemical vapor deposition (LPCVD) process. Under certain growth conditions apart from the graphene flakes, undesired CuxO nanodots appear. The samples were characterized by scanning electron microscopy, atomic force microscopy, Raman spectroscopy and X-ray photoemission spectroscopy. On the basis of the results, we investigated the effect of growth parameters such as pressure, methane-to-hydrogen ratio and cooling atmosphere on the growth rate, the composition, especially the cleanliness of graphene by scanning electron microscopy in detail. It is shown that the obtained film is quite sensitive on the preparation conditions and the appearance of CuxO nanodots is preventable.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 97, November 2013, Pages 9–14
نویسندگان
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