Enhanced surface morphologies of screen-printed carbon nanotube films by heat treatment and their field-emission properties

Hyeon Jae Lee; Yang Doo Lee; Seung Il Moon; Woo Sung Cho; Yun Hi Lee; Jai Kyeong Kim; Sung Woo Hwang; Byeong Kwon Ju

doi:10.1016/j.carbon.2006.04.038

Enhanced surface morphologies of screen-printed carbon nanotube films by heat treatment and their field-emission properties

Hyeon Jae Lee, Yang Doo Lee, Seung Il Moon, Woo Sung Cho, Yun Hi Lee, Jai Kyeong Kim, Sung Woo Hwang, Byeong Kwon Ju

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

28 Citations (Scopus)

Abstract

A heating process for obtaining free-standing carbon nanotube emitters is presented with the aim of improving field-emission properties from the screen-printed multiwalled carbon nanotube (MWCNT) films. Using an atmosphere with an optimum combination of nitrogen and air for heat treatment of CNT films, the CNT emitters can be made to protrude from the surface. This allows for a high emission current and the formation of very uniform emission sites without special surface treatment. The morphological change of the CNT film by this technique has eliminated additional processing steps, such as surface treatment which may result in secondary contamination and damage to the film. Despite its simplicity the process provides a high reproducibility in emission current density which makes the films suitable for practical applications.

Original language	English
Pages (from-to)	2625-2630
Number of pages	6
Journal	Carbon
Volume	44
Issue number	13
DOIs	https://doi.org/10.1016/j.carbon.2006.04.038
Publication status	Published - 2006 Nov

Keywords

Carbon nanotubes
Field-emission
Heat treatment
Surface treatment

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)

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10.1016/j.carbon.2006.04.038

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title = "Enhanced surface morphologies of screen-printed carbon nanotube films by heat treatment and their field-emission properties",

abstract = "A heating process for obtaining free-standing carbon nanotube emitters is presented with the aim of improving field-emission properties from the screen-printed multiwalled carbon nanotube (MWCNT) films. Using an atmosphere with an optimum combination of nitrogen and air for heat treatment of CNT films, the CNT emitters can be made to protrude from the surface. This allows for a high emission current and the formation of very uniform emission sites without special surface treatment. The morphological change of the CNT film by this technique has eliminated additional processing steps, such as surface treatment which may result in secondary contamination and damage to the film. Despite its simplicity the process provides a high reproducibility in emission current density which makes the films suitable for practical applications.",

keywords = "Carbon nanotubes, Field-emission, Heat treatment, Surface treatment",

author = "Lee, {Hyeon Jae} and Lee, {Yang Doo} and Moon, {Seung Il} and Cho, {Woo Sung} and Lee, {Yun Hi} and Kim, {Jai Kyeong} and Hwang, {Sung Woo} and Ju, {Byeong Kwon}",

note = "Funding Information: This work is supported by Energy Technology Development Project of Ministry of Commerce, Industry and Energy. This work was also partially supported by Nano Basic Science and Technology Project [I] of KOSEF.",

year = "2006",

month = nov,

doi = "10.1016/j.carbon.2006.04.038",

language = "English",

volume = "44",

pages = "2625--2630",

journal = "Carbon",

issn = "0008-6223",

publisher = "Elsevier Limited",

number = "13",

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T1 - Enhanced surface morphologies of screen-printed carbon nanotube films by heat treatment and their field-emission properties

AU - Lee, Hyeon Jae

AU - Lee, Yang Doo

AU - Moon, Seung Il

AU - Cho, Woo Sung

AU - Lee, Yun Hi

AU - Kim, Jai Kyeong

AU - Hwang, Sung Woo

AU - Ju, Byeong Kwon

N1 - Funding Information: This work is supported by Energy Technology Development Project of Ministry of Commerce, Industry and Energy. This work was also partially supported by Nano Basic Science and Technology Project [I] of KOSEF.

PY - 2006/11

Y1 - 2006/11

N2 - A heating process for obtaining free-standing carbon nanotube emitters is presented with the aim of improving field-emission properties from the screen-printed multiwalled carbon nanotube (MWCNT) films. Using an atmosphere with an optimum combination of nitrogen and air for heat treatment of CNT films, the CNT emitters can be made to protrude from the surface. This allows for a high emission current and the formation of very uniform emission sites without special surface treatment. The morphological change of the CNT film by this technique has eliminated additional processing steps, such as surface treatment which may result in secondary contamination and damage to the film. Despite its simplicity the process provides a high reproducibility in emission current density which makes the films suitable for practical applications.

AB - A heating process for obtaining free-standing carbon nanotube emitters is presented with the aim of improving field-emission properties from the screen-printed multiwalled carbon nanotube (MWCNT) films. Using an atmosphere with an optimum combination of nitrogen and air for heat treatment of CNT films, the CNT emitters can be made to protrude from the surface. This allows for a high emission current and the formation of very uniform emission sites without special surface treatment. The morphological change of the CNT film by this technique has eliminated additional processing steps, such as surface treatment which may result in secondary contamination and damage to the film. Despite its simplicity the process provides a high reproducibility in emission current density which makes the films suitable for practical applications.

KW - Carbon nanotubes

KW - Field-emission

KW - Heat treatment

KW - Surface treatment

UR - http://www.scopus.com/inward/record.url?scp=33748089008&partnerID=8YFLogxK

U2 - 10.1016/j.carbon.2006.04.038

DO - 10.1016/j.carbon.2006.04.038

M3 - Article

AN - SCOPUS:33748089008

SN - 0008-6223

VL - 44

SP - 2625

EP - 2630

JO - Carbon

JF - Carbon

IS - 13

ER -

Enhanced surface morphologies of screen-printed carbon nanotube films by heat treatment and their field-emission properties

Abstract

Keywords

ASJC Scopus subject areas

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