Grafena: Perbedaan antara revisi
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== Sintesis Grafena ==
Telah diperhitungkan bahwa fragmen-fragmen kecil lembaran grafena dihasilkan (bersamaan dengan serpihan lainnya) ketika [[grafit]] dikikis, misalnya ketika menggambar garis dengan [[pensil]].<ref>"...bits of graphene are undoubtedly present in every pencil mark" —[http://www.sciam.com/article.cfm?id=carbon-wonderland Carbon Wonderland, ''Scientific American'', April 2008 ]</ref> Namun, [[fisikawan]] dari Universitas Manchester dan ''Institute for Microelectronics Technology, Chernogolovka, Russia'' yang pertama kali mengisolasi dan mempelajari grafena (daripada [[hidrokarbon]] aromatik polisiklik) pada tahun 2004. Selain itu pada publikasi dalam jurnal ilmiah ''Science''<ref name
<blockquote>Graphene is the name given to a single layer of carbon atoms densely packed into a benzene-ring structure, and is widely used to describe properties of many carbon-based materials, including graphite, large fullerenes, nanotubes, etc. (e.g., carbon nanotubes are usually thought of as graphene sheets rolled up into [[nanometer]]-sized cylinder (geometry)|cylinders). Planar graphene itself has been presumed not to exist in the free state, being unstable with respect to the formation of curved structures such as soot, fullerenes, and nanotubes.</blockquote>
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== Sifat-sifat grafena ==
=== Struktur atom ===
Struktur atom grafena berlapis tunggal dikaji dengan menggunakan [[mikroskop elektron transmisi]] (Bahasa Inggris: ''Transmission electron microscope'') dengan lembar grafena disuspensi di antara kisi logam.<ref name
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