Physics – Condensed Matter – Materials Science
Scientific paper
2009-02-26
Physical Review B 81, 155444 (2010)
Physics
Condensed Matter
Materials Science
10 pages, 13 figures
Scientific paper
10.1103/PhysRevB.81.155444
We analyze a new fundamental building block for monolithic nanoengineering on graphene: the Inverse-Stone-Thrower-Wales (ISTW) defect. The ISTW is formed from a pair of joined pentagonal carbon rings placed between a pair of heptagonal rings; the well-known Stone-Thrower-Wales (STW) defect is the same arrangement, but with the heptagonal rather than pentagonal rings joined. When removed and passivated with hydrogen, the structure constitutes a new molecule, diazulene, which may be viewed as the result of an ad-dimer defect on anthracene. Embedding diazulene in the honeycomb lattice, we study the effect of ad-dimers on planar graphene. Because the ISTW defect has yet to be experimentally identified, we examine several synthesis routes and find one for which the barrier is only slightly higher than that associated with adatom hopping on graphene. ISTW and STW defects may be viewed as fundamental building blocks for monolithic structures on graphene. We show how to construct extended defect domains on the surface of graphene in the form of blisters, bubbles, and ridges on a length scale as small as 2 angstroms by 7 angstroms. Our primary tool in these studies is density functional theory.
Carr Lincoln D.
Lusk Mark T.
Wu David T.
No associations
LandOfFree
Graphene Nanoengineering and the Inverse-Stone-Thrower-Wales Defect does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Graphene Nanoengineering and the Inverse-Stone-Thrower-Wales Defect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Graphene Nanoengineering and the Inverse-Stone-Thrower-Wales Defect will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-253979