MARC 主機 00000nam a2200349 4500
001 AAI3571267
005 20140512081853.5
008 140512s2013 ||||||||s|||||||| ||eng d
020 9781303223075
035 (MiAaPQ)AAI3571267
040 MiAaPQ|cMiAaPQ
100 1 Ruiz-Vargas, Carlos Samuel
245 10 Synthesis, morphology and properties of polycrystalline
graphene membranes
300 135 p
500 Source: Dissertation Abstracts International, Volume: 74-
11(E), Section: B
500 Adviser: Jiwoong Park
502 Thesis (Ph.D.)--Cornell University, 2013
520 Graphene has recently emerged as a promising material for
a wide range of potential applications, thanks to its
outstanding electrical, mechanical, thermal and optical
properties. This interest has fueled many efforts to
establish methods for large scale graphene synthesis. One
of the most promising scalable approaches is to obtain
graphene on metal surfaces, most notably on copper, via
chemical vapor deposition (CVD)
520 We have developed novel fabrication methods to obtain CVD
graphene devices in large quantities. This allowed a
thorough study of the polycrystalline structure in CVD
graphene, as well as the characterization of mechanical
and electrical properties, which are affected by
graphene's grain structure. We found that grain boundaries
are not the dominant factor in determining the electrical
properties of devices. However, grain boundaries were
observed to strongly affect graphene mechanical
properties. For example, tearing and unzipping along grain
boundaries were observed in graphene membranes, as a
result of nanoindentation
520 Finally, we have fabricated microcapsules featuring
atomically thin windows made of reinforced double-layer
CVD graphene. We have demonstrated the use of these
windows for scanning electron microscopy (SEM) of samples
in water. As proof of principle, we have imaged metallic
nanoparticles in solution, with resolution and signal to
noise ratio superior to those obtained with polyimide-
based commercially available environmental cells
590 School code: 0058
650 4 Physics, Condensed Matter
650 4 Engineering, Materials Science
690 0611
690 0794
710 2 Cornell University.|bApplied and Engineering Physics
773 0 |tDissertation Abstracts International|g74-11B(E)
856 40 |uhttps://pqdd.sinica.edu.tw/twdaoapp/servlet/
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