Purification of single-walled carbon nanotubes based on thermocapillary flow

Jizhou Song*, Chaofeng Lu, Sung Hun Jin, Simon N. Dunham, Xu Xie, John A. Rogers, Yonggang Huang

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Single-walled carbon nanotubes (SWNTs) are of significant interest in the electronic materials research community due to their excellent electrical properties and many promising applications. However, SWNTs grow as mixture of both metallic and semiconducting tubes and this heterogeneity frustrates their practical use in high performance electronics. Recently developed purification techniques based on nanoscale thermocapillary flow of thin film overcoats enables complete elimination of metallic SWNTs from as-grown arrays. We studied the thermocapillary flow to purify SWNTs analytically and established a simple scaling law for the film thickness profile in terms of the geometry (e.g., film thickness), material (e.g., thermal conductivity and viscosity), and loading (e.g., power density) parameters. The results show that the normalized thickness profile only depends on one nondimensional parameter: the normalized power density. These findings may serve as useful design guidelines for process optimization.

Original languageEnglish (US)
Article number071010
JournalJournal of Applied Mechanics, Transactions ASME
Volume82
Issue number7
DOIs
StatePublished - Jul 1 2015

Fingerprint

Single-walled carbon nanotubes (SWCN)
purification
Purification
carbon nanotubes
Film thickness
radiant flux density
film thickness
Scaling laws
profiles
electronics
scaling laws
elimination
Thermal conductivity
Electric properties
Electronic equipment
thermal conductivity
electrical properties
Viscosity
viscosity
tubes

Keywords

  • Joule heating
  • single-walled carbon nanotube
  • thermocapillary flow

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Song, Jizhou ; Lu, Chaofeng ; Jin, Sung Hun ; Dunham, Simon N. ; Xie, Xu ; Rogers, John A. ; Huang, Yonggang. / Purification of single-walled carbon nanotubes based on thermocapillary flow. In: Journal of Applied Mechanics, Transactions ASME. 2015 ; Vol. 82, No. 7.
@article{668d801ca2a5454aae2f589ae3b2292c,
title = "Purification of single-walled carbon nanotubes based on thermocapillary flow",
abstract = "Single-walled carbon nanotubes (SWNTs) are of significant interest in the electronic materials research community due to their excellent electrical properties and many promising applications. However, SWNTs grow as mixture of both metallic and semiconducting tubes and this heterogeneity frustrates their practical use in high performance electronics. Recently developed purification techniques based on nanoscale thermocapillary flow of thin film overcoats enables complete elimination of metallic SWNTs from as-grown arrays. We studied the thermocapillary flow to purify SWNTs analytically and established a simple scaling law for the film thickness profile in terms of the geometry (e.g., film thickness), material (e.g., thermal conductivity and viscosity), and loading (e.g., power density) parameters. The results show that the normalized thickness profile only depends on one nondimensional parameter: the normalized power density. These findings may serve as useful design guidelines for process optimization.",
keywords = "Joule heating, single-walled carbon nanotube, thermocapillary flow",
author = "Jizhou Song and Chaofeng Lu and Jin, {Sung Hun} and Dunham, {Simon N.} and Xu Xie and Rogers, {John A.} and Yonggang Huang",
year = "2015",
month = "7",
day = "1",
doi = "10.1115/1.4030330",
language = "English (US)",
volume = "82",
journal = "Journal of Applied Mechanics, Transactions ASME",
issn = "0021-8936",
publisher = "American Society of Mechanical Engineers(ASME)",
number = "7",

}

Purification of single-walled carbon nanotubes based on thermocapillary flow. / Song, Jizhou; Lu, Chaofeng; Jin, Sung Hun; Dunham, Simon N.; Xie, Xu; Rogers, John A.; Huang, Yonggang.

In: Journal of Applied Mechanics, Transactions ASME, Vol. 82, No. 7, 071010, 01.07.2015.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Purification of single-walled carbon nanotubes based on thermocapillary flow

AU - Song, Jizhou

AU - Lu, Chaofeng

AU - Jin, Sung Hun

AU - Dunham, Simon N.

AU - Xie, Xu

AU - Rogers, John A.

AU - Huang, Yonggang

PY - 2015/7/1

Y1 - 2015/7/1

N2 - Single-walled carbon nanotubes (SWNTs) are of significant interest in the electronic materials research community due to their excellent electrical properties and many promising applications. However, SWNTs grow as mixture of both metallic and semiconducting tubes and this heterogeneity frustrates their practical use in high performance electronics. Recently developed purification techniques based on nanoscale thermocapillary flow of thin film overcoats enables complete elimination of metallic SWNTs from as-grown arrays. We studied the thermocapillary flow to purify SWNTs analytically and established a simple scaling law for the film thickness profile in terms of the geometry (e.g., film thickness), material (e.g., thermal conductivity and viscosity), and loading (e.g., power density) parameters. The results show that the normalized thickness profile only depends on one nondimensional parameter: the normalized power density. These findings may serve as useful design guidelines for process optimization.

AB - Single-walled carbon nanotubes (SWNTs) are of significant interest in the electronic materials research community due to their excellent electrical properties and many promising applications. However, SWNTs grow as mixture of both metallic and semiconducting tubes and this heterogeneity frustrates their practical use in high performance electronics. Recently developed purification techniques based on nanoscale thermocapillary flow of thin film overcoats enables complete elimination of metallic SWNTs from as-grown arrays. We studied the thermocapillary flow to purify SWNTs analytically and established a simple scaling law for the film thickness profile in terms of the geometry (e.g., film thickness), material (e.g., thermal conductivity and viscosity), and loading (e.g., power density) parameters. The results show that the normalized thickness profile only depends on one nondimensional parameter: the normalized power density. These findings may serve as useful design guidelines for process optimization.

KW - Joule heating

KW - single-walled carbon nanotube

KW - thermocapillary flow

UR - http://www.scopus.com/inward/record.url?scp=84930965641&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84930965641&partnerID=8YFLogxK

U2 - 10.1115/1.4030330

DO - 10.1115/1.4030330

M3 - Article

VL - 82

JO - Journal of Applied Mechanics, Transactions ASME

JF - Journal of Applied Mechanics, Transactions ASME

SN - 0021-8936

IS - 7

M1 - 071010

ER -