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Artistic license or a misconception? February 8, 2010

Posted by fetzthechemist in Uncategorized.
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I have seen the same mistaken illustrated view of graphene in Science News, Discover, and even in Chemical and Engineering News. That is of perfect graphene sheets, fully alternant with all six-carbon rings, and it is wavy. Graphene is a plane. Only discontinuities, heteroatoms or rings of other numbers of atoms, cause it to pucker or mound up. The largest of PAHs, the 222-carbon one made by Klaus Muellen and co-workwrs and 10 to 12 rings across (depending on which axis you go across) shows flatness. Rolling hills of carbon may look nicer, but it is a figment of the artist’s imagination. Graphene is either impure or it is flat.

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1. Rhenium - February 11, 2010

Really? I could have sworn that there was a recent set of papers (theoretical of course) that strongly inferred that “waviness” was a normal feature of graphene. Maybe I’ll try searching after lecture.


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