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Title: Metallic carbon materials

Abstract

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.

Inventors:
 [1];  [2];  [1];  [3]
  1. (Berkeley, CA)
  2. (Darien, IL)
  3. (Kensington, CA)
Issue Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA
OSTI Identifier:
872702
Patent Number(s):
5993697
Assignee:
Regents of University of California (Oakland, CA) LBNL
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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; /252/423/

Citation Formats

Cohen, Marvin Lou, Crespi, Vincent Henry, Louie, Steven Gwon Sheng, and Zettl, Alexander Karlwalter. Metallic carbon materials. United States: N. p., 1999. Web.
Cohen, Marvin Lou, Crespi, Vincent Henry, Louie, Steven Gwon Sheng, & Zettl, Alexander Karlwalter. Metallic carbon materials. United States.
Cohen, Marvin Lou, Crespi, Vincent Henry, Louie, Steven Gwon Sheng, and Zettl, Alexander Karlwalter. Fri . "Metallic carbon materials". United States. https://www.osti.gov/servlets/purl/872702.
@article{osti_872702,
title = {Metallic carbon materials},
author = {Cohen, Marvin Lou and Crespi, Vincent Henry and Louie, Steven Gwon Sheng and Zettl, Alexander Karlwalter},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

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