کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
702224 1460797 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Molecular beam epitaxial growth of graphene using cracked ethylene — Advantage over ethanol in growth
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
Molecular beam epitaxial growth of graphene using cracked ethylene — Advantage over ethanol in growth
چکیده انگلیسی

We studied the growth of graphene by molecular beam epitaxy (MBE) using ethylene and evaluated the MBE-grown graphene. The flow rate dependence of the carbon deposition rate in the ethylene MBE indicated a gradual decrease of the deposition rate with increasing flow rate. This is an improvement from that deposition rate with ethanol, which abruptly decreases because of an etching effect. This feature of ethylene enhances the condition for the growth of the high-quality graphene. Raman spectroscopy measurement and atomic force microscopy observation show that the quality of graphene grown using ethylene is improved from that grown using ethanol from the viewpoints of a domain size and crystallinity. These results demonstrate the advantages of ethylene over ethanol in the MBE growth of graphene.


► High-temperature cracking enables us to use ethylene as a source gas for MBE growth.
► Use of ethylene instead of ethanol improves flow-rate dependence of MBE.
► Graphene domain size grown using ethylene is larger than that grown using ethanol.
► Ethylene has the advantage over ethanol in the MBE growth of graphene.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Diamond and Related Materials - Volume 34, April 2013, Pages 84–88
نویسندگان
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