Electron-beam engineering of single-walled carbon nanotubes from bilayer graphene

Gerardo Algara-Siller; Adriano Santana; Rosalind Onions; Mikhail Suyetin; Johannes Biskupek; Elena Bichoutskaia; Ute Kaiser

doi:10.1016/j.carbon.2013.07.107

Electron-beam engineering of single-walled carbon nanotubes from bilayer graphene

Gerardo Algara-Siller, Adriano Santana, Rosalind Onions, Mikhail Suyetin, Johannes Biskupek, Elena Bichoutskaia, Ute Kaiser^*

^*Corresponding author for this work

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

27 Scopus citations

Abstract

Bilayer graphene nanoribbons (BGNRs) with a predefined width have been produced directly from bilayer graphene using a transmission electron microscope (TEM) in scanning mode operated at 300 kV. The BGNRs have been subsequently imaged in high-resolution TEM mode at 80 kV. During imaging, the interaction of the electrons with the sample induces structural transformations in the BGNR, such as closure of the edges and thinning, leading to the formation of a single-walled carbon nanotube (SWCNT). We demonstrate using molecular dynamics simulations that the produced SWCNT is, in fact, a flattened SWCNT with elliptical circumference. Density functional theory calculations show that the band gap of the flattened semiconducting SWCNTs is significantly smaller than that of the undeformed semiconducting SWCNTs, and this effect is particularly profound in narrow SWCNTs.

Original language	English (US)
Pages (from-to)	80-86
Number of pages	7
Journal	Carbon
Volume	65
DOIs	https://doi.org/10.1016/j.carbon.2013.07.107
State	Published - Dec 2013
Externally published	Yes

Bibliographical note

Funding Information:
G.A.-S. acknowledges the support of CONACyT-DAAD stipend. E.B. acknowledges EPSRC Career Acceleration Fellowship , New Directions for EPSRC Research Leaders Award ( EP/G005060 ) and ERC starting grant for funding. G.A.-S., U.K. and J.B. acknowledge the financial support by the DFG (German Research Foundation) and the Ministry of Science, Research and the Arts (MWK) of Baden-Wuerttemberg in the frame of the SALVE (Sub Angstrom Low-Voltage Electron Microscopy) project.

ASJC Scopus subject areas

General Chemistry
General Materials Science

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10.1016/j.carbon.2013.07.107

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title = "Electron-beam engineering of single-walled carbon nanotubes from bilayer graphene",

abstract = "Bilayer graphene nanoribbons (BGNRs) with a predefined width have been produced directly from bilayer graphene using a transmission electron microscope (TEM) in scanning mode operated at 300 kV. The BGNRs have been subsequently imaged in high-resolution TEM mode at 80 kV. During imaging, the interaction of the electrons with the sample induces structural transformations in the BGNR, such as closure of the edges and thinning, leading to the formation of a single-walled carbon nanotube (SWCNT). We demonstrate using molecular dynamics simulations that the produced SWCNT is, in fact, a flattened SWCNT with elliptical circumference. Density functional theory calculations show that the band gap of the flattened semiconducting SWCNTs is significantly smaller than that of the undeformed semiconducting SWCNTs, and this effect is particularly profound in narrow SWCNTs.",

author = "Gerardo Algara-Siller and Adriano Santana and Rosalind Onions and Mikhail Suyetin and Johannes Biskupek and Elena Bichoutskaia and Ute Kaiser",

note = "Funding Information: G.A.-S. acknowledges the support of CONACyT-DAAD stipend. E.B. acknowledges EPSRC Career Acceleration Fellowship , New Directions for EPSRC Research Leaders Award ( EP/G005060 ) and ERC starting grant for funding. G.A.-S., U.K. and J.B. acknowledge the financial support by the DFG (German Research Foundation) and the Ministry of Science, Research and the Arts (MWK) of Baden-Wuerttemberg in the frame of the SALVE (Sub Angstrom Low-Voltage Electron Microscopy) project.",

year = "2013",

month = dec,

doi = "10.1016/j.carbon.2013.07.107",

language = "English (US)",

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journal = "Carbon",

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AU - Algara-Siller, Gerardo

AU - Santana, Adriano

AU - Onions, Rosalind

AU - Suyetin, Mikhail

AU - Biskupek, Johannes

AU - Bichoutskaia, Elena

AU - Kaiser, Ute

N1 - Funding Information: G.A.-S. acknowledges the support of CONACyT-DAAD stipend. E.B. acknowledges EPSRC Career Acceleration Fellowship , New Directions for EPSRC Research Leaders Award ( EP/G005060 ) and ERC starting grant for funding. G.A.-S., U.K. and J.B. acknowledge the financial support by the DFG (German Research Foundation) and the Ministry of Science, Research and the Arts (MWK) of Baden-Wuerttemberg in the frame of the SALVE (Sub Angstrom Low-Voltage Electron Microscopy) project.

PY - 2013/12

Y1 - 2013/12

N2 - Bilayer graphene nanoribbons (BGNRs) with a predefined width have been produced directly from bilayer graphene using a transmission electron microscope (TEM) in scanning mode operated at 300 kV. The BGNRs have been subsequently imaged in high-resolution TEM mode at 80 kV. During imaging, the interaction of the electrons with the sample induces structural transformations in the BGNR, such as closure of the edges and thinning, leading to the formation of a single-walled carbon nanotube (SWCNT). We demonstrate using molecular dynamics simulations that the produced SWCNT is, in fact, a flattened SWCNT with elliptical circumference. Density functional theory calculations show that the band gap of the flattened semiconducting SWCNTs is significantly smaller than that of the undeformed semiconducting SWCNTs, and this effect is particularly profound in narrow SWCNTs.

AB - Bilayer graphene nanoribbons (BGNRs) with a predefined width have been produced directly from bilayer graphene using a transmission electron microscope (TEM) in scanning mode operated at 300 kV. The BGNRs have been subsequently imaged in high-resolution TEM mode at 80 kV. During imaging, the interaction of the electrons with the sample induces structural transformations in the BGNR, such as closure of the edges and thinning, leading to the formation of a single-walled carbon nanotube (SWCNT). We demonstrate using molecular dynamics simulations that the produced SWCNT is, in fact, a flattened SWCNT with elliptical circumference. Density functional theory calculations show that the band gap of the flattened semiconducting SWCNTs is significantly smaller than that of the undeformed semiconducting SWCNTs, and this effect is particularly profound in narrow SWCNTs.

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JO - Carbon

JF - Carbon

ER -

Electron-beam engineering of single-walled carbon nanotubes from bilayer graphene

Abstract

Bibliographical note

ASJC Scopus subject areas

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