Selective tuning of the electronic properties of coaxial nanocables through exohedral doping

Antonio G. Souza Filho; Vincent Meunier; Mauricio Terrones; Bobby G. Sumpter; Eduardo B. Barros; Federico Villalpando-Páez; Josue Mendes Filho; Yoong Ahm Kim; Hiroyuki Muramatsu; Takuya Hayashi; Morinobu Endo; Mildred S. Dresselhaus

doi:10.1021/nl0710351

Selective tuning of the electronic properties of coaxial nanocables through exohedral doping

Antonio G. Souza Filho, Vincent Meunier, Mauricio Terrones, Bobby G. Sumpter, Eduardo B. Barros, Federico Villalpando-Páez, Josue Mendes Filho, Yoong Ahm Kim, Hiroyuki Muramatsu, Takuya Hayashi, Morinobu Endo, Mildred S. Dresselhaus

Research output: Contribution to journal › Article › peer-review

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Abstract

The electronic properties of exohedrally doped double-walled carbon nanotubes (DWNTs) have been investigated using density functional theory and resonance Raman spectroscopy (RRS) measurements. First-principles calculations elucidate the effects of exohedral doping on the M@S and S@M systems, where a metallic (M) tube is either inside or outside a semiconducting (S) one. The results demonstrate that metallic nanotubes are extremely sensitive to doping even when they are inner tubes, in sharp contrast to semiconducting nanotubes, which are not affected by doping when the outer shell is a metallic nanotube (screening effects). The theoretical predictions are in agreement with RRS data on Br₂- and H₂SO₄-doped DWNTs. These results pave the way to novel nanoscale electronics via exohedral doping.

Original language	English
Pages (from-to)	2383-2388
Number of pages	6
Journal	Nano Letters
Volume	7
Issue number	8
DOIs	https://doi.org/10.1021/nl0710351
State	Published - Aug 2007

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title = "Selective tuning of the electronic properties of coaxial nanocables through exohedral doping",

abstract = "The electronic properties of exohedrally doped double-walled carbon nanotubes (DWNTs) have been investigated using density functional theory and resonance Raman spectroscopy (RRS) measurements. First-principles calculations elucidate the effects of exohedral doping on the M@S and S@M systems, where a metallic (M) tube is either inside or outside a semiconducting (S) one. The results demonstrate that metallic nanotubes are extremely sensitive to doping even when they are inner tubes, in sharp contrast to semiconducting nanotubes, which are not affected by doping when the outer shell is a metallic nanotube (screening effects). The theoretical predictions are in agreement with RRS data on Br2- and H2SO4-doped DWNTs. These results pave the way to novel nanoscale electronics via exohedral doping.",

author = "{Souza Filho}, {Antonio G.} and Vincent Meunier and Mauricio Terrones and Sumpter, {Bobby G.} and Barros, {Eduardo B.} and Federico Villalpando-P{\'a}ez and Filho, {Josue Mendes} and Kim, {Yoong Ahm} and Hiroyuki Muramatsu and Takuya Hayashi and Morinobu Endo and Dresselhaus, {Mildred S.}",

year = "2007",

month = aug,

doi = "10.1021/nl0710351",

language = "English",

volume = "7",

pages = "2383--2388",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Selective tuning of the electronic properties of coaxial nanocables through exohedral doping

AU - Souza Filho, Antonio G.

AU - Meunier, Vincent

AU - Terrones, Mauricio

AU - Sumpter, Bobby G.

AU - Barros, Eduardo B.

AU - Villalpando-Páez, Federico

AU - Filho, Josue Mendes

AU - Kim, Yoong Ahm

AU - Muramatsu, Hiroyuki

AU - Hayashi, Takuya

AU - Endo, Morinobu

AU - Dresselhaus, Mildred S.

PY - 2007/8

Y1 - 2007/8

N2 - The electronic properties of exohedrally doped double-walled carbon nanotubes (DWNTs) have been investigated using density functional theory and resonance Raman spectroscopy (RRS) measurements. First-principles calculations elucidate the effects of exohedral doping on the M@S and S@M systems, where a metallic (M) tube is either inside or outside a semiconducting (S) one. The results demonstrate that metallic nanotubes are extremely sensitive to doping even when they are inner tubes, in sharp contrast to semiconducting nanotubes, which are not affected by doping when the outer shell is a metallic nanotube (screening effects). The theoretical predictions are in agreement with RRS data on Br2- and H2SO4-doped DWNTs. These results pave the way to novel nanoscale electronics via exohedral doping.

AB - The electronic properties of exohedrally doped double-walled carbon nanotubes (DWNTs) have been investigated using density functional theory and resonance Raman spectroscopy (RRS) measurements. First-principles calculations elucidate the effects of exohedral doping on the M@S and S@M systems, where a metallic (M) tube is either inside or outside a semiconducting (S) one. The results demonstrate that metallic nanotubes are extremely sensitive to doping even when they are inner tubes, in sharp contrast to semiconducting nanotubes, which are not affected by doping when the outer shell is a metallic nanotube (screening effects). The theoretical predictions are in agreement with RRS data on Br2- and H2SO4-doped DWNTs. These results pave the way to novel nanoscale electronics via exohedral doping.

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JO - Nano Letters

JF - Nano Letters

IS - 8

ER -

Selective tuning of the electronic properties of coaxial nanocables through exohedral doping

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