Metallic carbon materials

Patent · Fri Jan 01 00:00:00 EST 1999

OSTI ID:872702

Cohen, Marvin Lou ^[1]; Crespi, Vincent Henry ^[2]; Louie, Steven Gwon Sheng ^[1]; Zettl, Alexander Karlwalter ^[3]

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1. Berkeley, CA
2. Darien, IL
3. Kensington, CA

Novel metallic forms of planar carbon are described, as well as methods of designing and making them. Nonhexagonal arrangements of carbon are introduced into a graphite carbon network essentially without destroying the planar structure. Specifically a form of carbon comprising primarily pentagons and heptagons, and having a large density of states at the Fermi level is described. Other arrangements of pentagons and heptagons that include some hexagons, and structures incorporating squares and octagons are additionally disclosed. Reducing the bond angle symmetry associated with a hexagonal arrangement of carbons increases the likelihood that the carbon material will have a metallic electron structure.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• DOE Contract Number: AC03-76SF00098
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5993697
• OSTI ID: 872702
• Country of Publication: United States
• Language: English

Related Subjects

metallic
carbon
materials
novel
forms
planar
described
methods
designing
nonhexagonal
arrangements
introduced
graphite
network
essentially
destroying
structure
specifically
form
comprising
primarily
pentagons
heptagons
density
fermi
level
hexagons
structures
incorporating
squares
octagons
additionally
disclosed
reducing
bond
angle
symmetry
associated
hexagonal
arrangement
carbons
increases
likelihood
material
electron
carbon materials
carbon material
hexagonal arrangement
metallic forms
fermi level
graphite carbon
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