Multi-walled carbon nanotube/ribonucleic acid hybrid field emitters fabricated by spray deposition

Yang Doo Lee, Jung Wan Yu, Woo Sung Cho, Yong Churl Kim, In Taek Han, Yun-Hi Lee, Byeong Kwon Ju

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Multi-walled carbon nanotubes (MWCNTs) are shown to disperse in water, and be functionalized using RNA so that MWCNT/RNA hybrids can be fabricated on substrates by spray method. The material has strong adhesion on glass substrates or metal wires. A liquid elastomer surface treatment is used to make the field emitter tips protrude from the cathode. Possible methods of realizing field emitter sources, including X-ray sources, are discussed. The MWCNT/RNA hybrids have a higher emission current density and more uniform emission image than the MWCNTs on their own, since the RNA coated MWCNTs attach more strongly to the substrate. A diode configuration field emission X-ray source using the MWCNT/RNA hybrids on tungsten wire tip was tested and found to provide clear X-ray images.

Original languageEnglish
Pages (from-to)1131-1136
Number of pages6
JournalCarbon
Volume48
Issue number4
DOIs
Publication statusPublished - 2010 Apr 1

Fingerprint

Carbon Nanotubes
RNA
X rays
Substrates
Wire
Elastomers
Tungsten
Field emission
Surface treatment
Diodes
Cathodes
Current density
Adhesion
Metals
Glass
Water
Liquids

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Multi-walled carbon nanotube/ribonucleic acid hybrid field emitters fabricated by spray deposition. / Lee, Yang Doo; Yu, Jung Wan; Cho, Woo Sung; Kim, Yong Churl; Han, In Taek; Lee, Yun-Hi; Ju, Byeong Kwon.

In: Carbon, Vol. 48, No. 4, 01.04.2010, p. 1131-1136.

Research output: Contribution to journalArticle

Lee, Yang Doo ; Yu, Jung Wan ; Cho, Woo Sung ; Kim, Yong Churl ; Han, In Taek ; Lee, Yun-Hi ; Ju, Byeong Kwon. / Multi-walled carbon nanotube/ribonucleic acid hybrid field emitters fabricated by spray deposition. In: Carbon. 2010 ; Vol. 48, No. 4. pp. 1131-1136.
@article{ab914ef56aba4647a7c0e591034ab1a1,
title = "Multi-walled carbon nanotube/ribonucleic acid hybrid field emitters fabricated by spray deposition",
abstract = "Multi-walled carbon nanotubes (MWCNTs) are shown to disperse in water, and be functionalized using RNA so that MWCNT/RNA hybrids can be fabricated on substrates by spray method. The material has strong adhesion on glass substrates or metal wires. A liquid elastomer surface treatment is used to make the field emitter tips protrude from the cathode. Possible methods of realizing field emitter sources, including X-ray sources, are discussed. The MWCNT/RNA hybrids have a higher emission current density and more uniform emission image than the MWCNTs on their own, since the RNA coated MWCNTs attach more strongly to the substrate. A diode configuration field emission X-ray source using the MWCNT/RNA hybrids on tungsten wire tip was tested and found to provide clear X-ray images.",
author = "Lee, {Yang Doo} and Yu, {Jung Wan} and Cho, {Woo Sung} and Kim, {Yong Churl} and Han, {In Taek} and Yun-Hi Lee and Ju, {Byeong Kwon}",
year = "2010",
month = "4",
day = "1",
doi = "10.1016/j.carbon.2009.11.035",
language = "English",
volume = "48",
pages = "1131--1136",
journal = "Carbon",
issn = "0008-6223",
publisher = "Elsevier Limited",
number = "4",

}

TY - JOUR

T1 - Multi-walled carbon nanotube/ribonucleic acid hybrid field emitters fabricated by spray deposition

AU - Lee, Yang Doo

AU - Yu, Jung Wan

AU - Cho, Woo Sung

AU - Kim, Yong Churl

AU - Han, In Taek

AU - Lee, Yun-Hi

AU - Ju, Byeong Kwon

PY - 2010/4/1

Y1 - 2010/4/1

N2 - Multi-walled carbon nanotubes (MWCNTs) are shown to disperse in water, and be functionalized using RNA so that MWCNT/RNA hybrids can be fabricated on substrates by spray method. The material has strong adhesion on glass substrates or metal wires. A liquid elastomer surface treatment is used to make the field emitter tips protrude from the cathode. Possible methods of realizing field emitter sources, including X-ray sources, are discussed. The MWCNT/RNA hybrids have a higher emission current density and more uniform emission image than the MWCNTs on their own, since the RNA coated MWCNTs attach more strongly to the substrate. A diode configuration field emission X-ray source using the MWCNT/RNA hybrids on tungsten wire tip was tested and found to provide clear X-ray images.

AB - Multi-walled carbon nanotubes (MWCNTs) are shown to disperse in water, and be functionalized using RNA so that MWCNT/RNA hybrids can be fabricated on substrates by spray method. The material has strong adhesion on glass substrates or metal wires. A liquid elastomer surface treatment is used to make the field emitter tips protrude from the cathode. Possible methods of realizing field emitter sources, including X-ray sources, are discussed. The MWCNT/RNA hybrids have a higher emission current density and more uniform emission image than the MWCNTs on their own, since the RNA coated MWCNTs attach more strongly to the substrate. A diode configuration field emission X-ray source using the MWCNT/RNA hybrids on tungsten wire tip was tested and found to provide clear X-ray images.

UR - http://www.scopus.com/inward/record.url?scp=74149092407&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=74149092407&partnerID=8YFLogxK

U2 - 10.1016/j.carbon.2009.11.035

DO - 10.1016/j.carbon.2009.11.035

M3 - Article

AN - SCOPUS:74149092407

VL - 48

SP - 1131

EP - 1136

JO - Carbon

JF - Carbon

SN - 0008-6223

IS - 4

ER -