Field emission properties of carbon nanotubes deposited by electrophoresis

Jun Cheol Bae, Young Joon Yoon, Se Jong Lee, Hong Koo Baik

Research output: Contribution to journalConference article

40 Citations (Scopus)

Abstract

Field emission properties of carbon nanotubes (CNTs) deposited by electrophoresis were investigated. Uniform deposition of CNTs on 1×1cm2 of Ti substrate was observed by scanning electron microscopy (SEM). In addition, in case of CNTs synthesized by arc discharge, purification of CNTs was also obtained due to the higher electrophoretic velocity of carbon nanotubes than those of other carbon species. It indicates that electrophoresis can be used as the purification method of CNTs. As the result of I-V measurement, CNTs synthesized by arc discharge showed the lowest turn-on-field (J=30nA/cm2) of 1.77V/μm. On the other hand, CNTs synthesized by vapor phase growth showed a little higher turn-on-field of 2.28V/μm. Moreover, turn-on-field of acid treated CNTs had the highest value of 2.77V/μm. These differences might result from the difference in the electrical conductivity as well as the structural quality of CNTs such as wall and caps structures, radius, defect density, and density of CNTs.

Original languageEnglish
Pages (from-to)168-170
Number of pages3
JournalPhysica B: Condensed Matter
Volume323
Issue number1-4
DOIs
Publication statusPublished - 2002 Oct 1
EventProceedings of the Tsukuba Symposium on Carbon Nanotube in Com (CNT10) - Tsukuba, Japan
Duration: 2001 Oct 32001 Oct 5

Fingerprint

Carbon Nanotubes
electrophoresis
Electrophoresis
Field emission
field emission
Carbon nanotubes
carbon nanotubes
arc discharges
purification
Purification
Defect density
caps
Carbon
Vapors
vapor phases

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Bae, Jun Cheol ; Yoon, Young Joon ; Lee, Se Jong ; Baik, Hong Koo. / Field emission properties of carbon nanotubes deposited by electrophoresis. In: Physica B: Condensed Matter. 2002 ; Vol. 323, No. 1-4. pp. 168-170.
@article{4a379e158e9b430da62b167c78c5f000,
title = "Field emission properties of carbon nanotubes deposited by electrophoresis",
abstract = "Field emission properties of carbon nanotubes (CNTs) deposited by electrophoresis were investigated. Uniform deposition of CNTs on 1×1cm2 of Ti substrate was observed by scanning electron microscopy (SEM). In addition, in case of CNTs synthesized by arc discharge, purification of CNTs was also obtained due to the higher electrophoretic velocity of carbon nanotubes than those of other carbon species. It indicates that electrophoresis can be used as the purification method of CNTs. As the result of I-V measurement, CNTs synthesized by arc discharge showed the lowest turn-on-field (J=30nA/cm2) of 1.77V/μm. On the other hand, CNTs synthesized by vapor phase growth showed a little higher turn-on-field of 2.28V/μm. Moreover, turn-on-field of acid treated CNTs had the highest value of 2.77V/μm. These differences might result from the difference in the electrical conductivity as well as the structural quality of CNTs such as wall and caps structures, radius, defect density, and density of CNTs.",
author = "Bae, {Jun Cheol} and Yoon, {Young Joon} and Lee, {Se Jong} and Baik, {Hong Koo}",
year = "2002",
month = "10",
day = "1",
doi = "10.1016/S0921-4526(02)00890-6",
language = "English",
volume = "323",
pages = "168--170",
journal = "Physica B: Condensed Matter",
issn = "0921-4526",
publisher = "Elsevier",
number = "1-4",

}

Field emission properties of carbon nanotubes deposited by electrophoresis. / Bae, Jun Cheol; Yoon, Young Joon; Lee, Se Jong; Baik, Hong Koo.

In: Physica B: Condensed Matter, Vol. 323, No. 1-4, 01.10.2002, p. 168-170.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Field emission properties of carbon nanotubes deposited by electrophoresis

AU - Bae, Jun Cheol

AU - Yoon, Young Joon

AU - Lee, Se Jong

AU - Baik, Hong Koo

PY - 2002/10/1

Y1 - 2002/10/1

N2 - Field emission properties of carbon nanotubes (CNTs) deposited by electrophoresis were investigated. Uniform deposition of CNTs on 1×1cm2 of Ti substrate was observed by scanning electron microscopy (SEM). In addition, in case of CNTs synthesized by arc discharge, purification of CNTs was also obtained due to the higher electrophoretic velocity of carbon nanotubes than those of other carbon species. It indicates that electrophoresis can be used as the purification method of CNTs. As the result of I-V measurement, CNTs synthesized by arc discharge showed the lowest turn-on-field (J=30nA/cm2) of 1.77V/μm. On the other hand, CNTs synthesized by vapor phase growth showed a little higher turn-on-field of 2.28V/μm. Moreover, turn-on-field of acid treated CNTs had the highest value of 2.77V/μm. These differences might result from the difference in the electrical conductivity as well as the structural quality of CNTs such as wall and caps structures, radius, defect density, and density of CNTs.

AB - Field emission properties of carbon nanotubes (CNTs) deposited by electrophoresis were investigated. Uniform deposition of CNTs on 1×1cm2 of Ti substrate was observed by scanning electron microscopy (SEM). In addition, in case of CNTs synthesized by arc discharge, purification of CNTs was also obtained due to the higher electrophoretic velocity of carbon nanotubes than those of other carbon species. It indicates that electrophoresis can be used as the purification method of CNTs. As the result of I-V measurement, CNTs synthesized by arc discharge showed the lowest turn-on-field (J=30nA/cm2) of 1.77V/μm. On the other hand, CNTs synthesized by vapor phase growth showed a little higher turn-on-field of 2.28V/μm. Moreover, turn-on-field of acid treated CNTs had the highest value of 2.77V/μm. These differences might result from the difference in the electrical conductivity as well as the structural quality of CNTs such as wall and caps structures, radius, defect density, and density of CNTs.

UR - http://www.scopus.com/inward/record.url?scp=0036776592&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036776592&partnerID=8YFLogxK

U2 - 10.1016/S0921-4526(02)00890-6

DO - 10.1016/S0921-4526(02)00890-6

M3 - Conference article

VL - 323

SP - 168

EP - 170

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

IS - 1-4

ER -