Arrays of single-walled carbon nanotubes with full surface coverage for high-performance electronics

Qing Cao, Shu Jen Han, George S. Tulevski, Yu Zhu, Darsen D. Lu, Wilfried Haensch

Research output: Contribution to journalArticle

Abstract

Single-walled carbon nanotubes have exceptional electronic properties and have been proposed as a replacement for silicon in applications such as low-cost thin-film transistors and high-performance logic devices. However, practical devices will require dense, aligned arrays of electronically pure nanotubes to optimize performance, maximize device packing density and provide sufficient drive current (or power output) for each transistor. Here, we show that aligned arrays of semiconducting carbon nanotubes can be assembled using the Langmuir-Schaefer method. The arrays have a semiconducting nanotube purity of 99% and can fully cover a surface with a nanotube density of more than 500 tubes/μm. The nanotube pitch is self-limited by the diameter of the nanotube plus the van der Waals separation, and the intrinsic mobility of the nanotubes is preserved after array assembly. Transistors fabricated using this approach exhibit significant device performance characteristics with a drive current density of more than 120 μA μm-1, transconductance greater than 40 μS μm-1 and on/off ratios of ∼1 × 10 3.

Original languageEnglish (US)
Pages (from-to)180-186
Number of pages7
JournalNature Nanotechnology
Volume8
Issue number3
DOIs
StatePublished - Mar 2013
Externally publishedYes

Fingerprint

Single-walled carbon nanotubes (SWCN)
Nanotubes
nanotubes
Electronic equipment
carbon nanotubes
electronics
transistors
Transistors
Logic devices
Carbon Nanotubes
packing density
Transconductance
Silicon
transconductance
Thin film transistors
Electronic properties
logic
Carbon nanotubes
purity
Current density

ASJC Scopus subject areas

  • Bioengineering
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Arrays of single-walled carbon nanotubes with full surface coverage for high-performance electronics. / Cao, Qing; Han, Shu Jen; Tulevski, George S.; Zhu, Yu; Lu, Darsen D.; Haensch, Wilfried.

In: Nature Nanotechnology, Vol. 8, No. 3, 03.2013, p. 180-186.

Research output: Contribution to journalArticle

Cao, Qing ; Han, Shu Jen ; Tulevski, George S. ; Zhu, Yu ; Lu, Darsen D. ; Haensch, Wilfried. / Arrays of single-walled carbon nanotubes with full surface coverage for high-performance electronics. In: Nature Nanotechnology. 2013 ; Vol. 8, No. 3. pp. 180-186.
@article{b1f7df39f61344a9aef30fd582c4a2ec,
title = "Arrays of single-walled carbon nanotubes with full surface coverage for high-performance electronics",
abstract = "Single-walled carbon nanotubes have exceptional electronic properties and have been proposed as a replacement for silicon in applications such as low-cost thin-film transistors and high-performance logic devices. However, practical devices will require dense, aligned arrays of electronically pure nanotubes to optimize performance, maximize device packing density and provide sufficient drive current (or power output) for each transistor. Here, we show that aligned arrays of semiconducting carbon nanotubes can be assembled using the Langmuir-Schaefer method. The arrays have a semiconducting nanotube purity of 99{\%} and can fully cover a surface with a nanotube density of more than 500 tubes/μm. The nanotube pitch is self-limited by the diameter of the nanotube plus the van der Waals separation, and the intrinsic mobility of the nanotubes is preserved after array assembly. Transistors fabricated using this approach exhibit significant device performance characteristics with a drive current density of more than 120 μA μm-1, transconductance greater than 40 μS μm-1 and on/off ratios of ∼1 × 10 3.",
author = "Qing Cao and Han, {Shu Jen} and Tulevski, {George S.} and Yu Zhu and Lu, {Darsen D.} and Wilfried Haensch",
year = "2013",
month = "3",
doi = "10.1038/nnano.2012.257",
language = "English (US)",
volume = "8",
pages = "180--186",
journal = "Nature Nanotechnology",
issn = "1748-3387",
publisher = "Nature Publishing Group",
number = "3",

}

TY - JOUR

T1 - Arrays of single-walled carbon nanotubes with full surface coverage for high-performance electronics

AU - Cao, Qing

AU - Han, Shu Jen

AU - Tulevski, George S.

AU - Zhu, Yu

AU - Lu, Darsen D.

AU - Haensch, Wilfried

PY - 2013/3

Y1 - 2013/3

N2 - Single-walled carbon nanotubes have exceptional electronic properties and have been proposed as a replacement for silicon in applications such as low-cost thin-film transistors and high-performance logic devices. However, practical devices will require dense, aligned arrays of electronically pure nanotubes to optimize performance, maximize device packing density and provide sufficient drive current (or power output) for each transistor. Here, we show that aligned arrays of semiconducting carbon nanotubes can be assembled using the Langmuir-Schaefer method. The arrays have a semiconducting nanotube purity of 99% and can fully cover a surface with a nanotube density of more than 500 tubes/μm. The nanotube pitch is self-limited by the diameter of the nanotube plus the van der Waals separation, and the intrinsic mobility of the nanotubes is preserved after array assembly. Transistors fabricated using this approach exhibit significant device performance characteristics with a drive current density of more than 120 μA μm-1, transconductance greater than 40 μS μm-1 and on/off ratios of ∼1 × 10 3.

AB - Single-walled carbon nanotubes have exceptional electronic properties and have been proposed as a replacement for silicon in applications such as low-cost thin-film transistors and high-performance logic devices. However, practical devices will require dense, aligned arrays of electronically pure nanotubes to optimize performance, maximize device packing density and provide sufficient drive current (or power output) for each transistor. Here, we show that aligned arrays of semiconducting carbon nanotubes can be assembled using the Langmuir-Schaefer method. The arrays have a semiconducting nanotube purity of 99% and can fully cover a surface with a nanotube density of more than 500 tubes/μm. The nanotube pitch is self-limited by the diameter of the nanotube plus the van der Waals separation, and the intrinsic mobility of the nanotubes is preserved after array assembly. Transistors fabricated using this approach exhibit significant device performance characteristics with a drive current density of more than 120 μA μm-1, transconductance greater than 40 μS μm-1 and on/off ratios of ∼1 × 10 3.

UR - http://www.scopus.com/inward/record.url?scp=84874606273&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84874606273&partnerID=8YFLogxK

U2 - 10.1038/nnano.2012.257

DO - 10.1038/nnano.2012.257

M3 - Article

C2 - 23353673

AN - SCOPUS:84874606273

VL - 8

SP - 180

EP - 186

JO - Nature Nanotechnology

JF - Nature Nanotechnology

SN - 1748-3387

IS - 3

ER -