Synthesis and electronic properties of coalesced graphitic nanocones

M. Muñoz-Navia, J. Dorantes-Dávila, Mauricio Terrones Maldonado, T. Hayashi, Y. A. Kim, M. Endo, M. S. Dresselhaus, H. Terrones

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Thermal annealing of graphitic conical nanofibers, produced by pyrolysing Pd precursors under an Ar atmosphere at 850-1000 °C, results in the coalescence of adjacent cones. These novel cone-like arrangements exhibit heptagonal and pentagonal carbon rings located in the cauterized rims between adjacent cones. We propose molecular models that resemble such structures and calculate their electronic properties using a self-consistent local approach based on a realistic tight-binding Hamiltonian. The calculations demonstrate that coalesced cones exhibit a conducting behaviour and a local analysis of the density of states (DOS) reveals that curvature is crucial in modifying the electronic structure.

Original languageEnglish (US)
Pages (from-to)327-332
Number of pages6
JournalChemical Physics Letters
Volume407
Issue number4-6
DOIs
StatePublished - May 27 2005

Fingerprint

Electronic properties
Cones
cones
synthesis
electronics
Hamiltonians
Nanofibers
rims
Coalescence
coalescing
Electronic structure
Carbon
curvature
Annealing
electronic structure
conduction
atmospheres
annealing
carbon
rings

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Muñoz-Navia, M., Dorantes-Dávila, J., Terrones Maldonado, M., Hayashi, T., Kim, Y. A., Endo, M., ... Terrones, H. (2005). Synthesis and electronic properties of coalesced graphitic nanocones. Chemical Physics Letters, 407(4-6), 327-332. https://doi.org/10.1016/j.cplett.2005.03.095
Muñoz-Navia, M. ; Dorantes-Dávila, J. ; Terrones Maldonado, Mauricio ; Hayashi, T. ; Kim, Y. A. ; Endo, M. ; Dresselhaus, M. S. ; Terrones, H. / Synthesis and electronic properties of coalesced graphitic nanocones. In: Chemical Physics Letters. 2005 ; Vol. 407, No. 4-6. pp. 327-332.
@article{12acde9b28e1475ebfcd1fa971407b76,
title = "Synthesis and electronic properties of coalesced graphitic nanocones",
abstract = "Thermal annealing of graphitic conical nanofibers, produced by pyrolysing Pd precursors under an Ar atmosphere at 850-1000 °C, results in the coalescence of adjacent cones. These novel cone-like arrangements exhibit heptagonal and pentagonal carbon rings located in the cauterized rims between adjacent cones. We propose molecular models that resemble such structures and calculate their electronic properties using a self-consistent local approach based on a realistic tight-binding Hamiltonian. The calculations demonstrate that coalesced cones exhibit a conducting behaviour and a local analysis of the density of states (DOS) reveals that curvature is crucial in modifying the electronic structure.",
author = "M. Mu{\~n}oz-Navia and J. Dorantes-D{\'a}vila and {Terrones Maldonado}, Mauricio and T. Hayashi and Kim, {Y. A.} and M. Endo and Dresselhaus, {M. S.} and H. Terrones",
year = "2005",
month = "5",
day = "27",
doi = "10.1016/j.cplett.2005.03.095",
language = "English (US)",
volume = "407",
pages = "327--332",
journal = "Chemical Physics Letters",
issn = "0009-2614",
publisher = "Elsevier",
number = "4-6",

}

Muñoz-Navia, M, Dorantes-Dávila, J, Terrones Maldonado, M, Hayashi, T, Kim, YA, Endo, M, Dresselhaus, MS & Terrones, H 2005, 'Synthesis and electronic properties of coalesced graphitic nanocones', Chemical Physics Letters, vol. 407, no. 4-6, pp. 327-332. https://doi.org/10.1016/j.cplett.2005.03.095

Synthesis and electronic properties of coalesced graphitic nanocones. / Muñoz-Navia, M.; Dorantes-Dávila, J.; Terrones Maldonado, Mauricio; Hayashi, T.; Kim, Y. A.; Endo, M.; Dresselhaus, M. S.; Terrones, H.

In: Chemical Physics Letters, Vol. 407, No. 4-6, 27.05.2005, p. 327-332.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Synthesis and electronic properties of coalesced graphitic nanocones

AU - Muñoz-Navia, M.

AU - Dorantes-Dávila, J.

AU - Terrones Maldonado, Mauricio

AU - Hayashi, T.

AU - Kim, Y. A.

AU - Endo, M.

AU - Dresselhaus, M. S.

AU - Terrones, H.

PY - 2005/5/27

Y1 - 2005/5/27

N2 - Thermal annealing of graphitic conical nanofibers, produced by pyrolysing Pd precursors under an Ar atmosphere at 850-1000 °C, results in the coalescence of adjacent cones. These novel cone-like arrangements exhibit heptagonal and pentagonal carbon rings located in the cauterized rims between adjacent cones. We propose molecular models that resemble such structures and calculate their electronic properties using a self-consistent local approach based on a realistic tight-binding Hamiltonian. The calculations demonstrate that coalesced cones exhibit a conducting behaviour and a local analysis of the density of states (DOS) reveals that curvature is crucial in modifying the electronic structure.

AB - Thermal annealing of graphitic conical nanofibers, produced by pyrolysing Pd precursors under an Ar atmosphere at 850-1000 °C, results in the coalescence of adjacent cones. These novel cone-like arrangements exhibit heptagonal and pentagonal carbon rings located in the cauterized rims between adjacent cones. We propose molecular models that resemble such structures and calculate their electronic properties using a self-consistent local approach based on a realistic tight-binding Hamiltonian. The calculations demonstrate that coalesced cones exhibit a conducting behaviour and a local analysis of the density of states (DOS) reveals that curvature is crucial in modifying the electronic structure.

UR - http://www.scopus.com/inward/record.url?scp=18244407012&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=18244407012&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2005.03.095

DO - 10.1016/j.cplett.2005.03.095

M3 - Article

AN - SCOPUS:18244407012

VL - 407

SP - 327

EP - 332

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 4-6

ER -