Designability of Graphitic Cones

Abstract

We show that, with topologically flexible seeds which are allowed to explore different growth modes, graphitic cones are inherently more "designable" than flat graphitic disks. The designability of a structure is the number of seed topologies encoding that structure. We illustrate designability with a simple model, where graphite grows onto C(n) (5<n<3O) ring seeds. For a wide range of ring sizes, cones are the most likely topological outcome. Results from the model agree well with data from special cone-rich carbon black samples. The concept of designability allows entropy to be incorporated into the "pentagon road" model of the formation of curved graphitic structures.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2001
Accession Number
ADP012144

Entities

People

  • J. Kilian
  • M. M. Treacy

Organizations

  • NEC Laboratories America

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Curvature
  • Electron Microscopy
  • Energy
  • Enthalpy
  • Free Energy
  • Fullerenes
  • Gaussian Distributions
  • Graphitic Materials
  • Heat Of Formation
  • Manufacturing
  • Materials
  • Nucleation
  • Production
  • Self Assembly
  • Technical Information Centers
  • Topology
  • Transmission Electron Microscopy

Readers

  • Electrochemical Surface Science
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Thin Film Deposition Science.