Enhancement of the field emission of carbon nanotubes straightened by application of argon ion irradiation

Do Hyung Kim; Hoon Sik Jang; Chang Duk Kim; Dong Soo Cho; Hee Dong Kang; Hyeong Rag Lee

doi:10.1016/S0009-2614(03)01249-1

Enhancement of the field emission of carbon nanotubes straightened by application of argon ion irradiation

Do Hyung Kim, Hoon Sik Jang, Chang Duk Kim, Dong Soo Cho, Hee Dong Kang, Hyeong Rag Lee

Department of Physics

Kyungpook National University

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

59 Scopus citations

Abstract

The field emission properties of carbon nanotubes (CNTs) were enhanced by argon ion irradiation. Argon irradiation treatment led to an enhancement in the emission properties of CNTs which showed a decrease in turn-on field and an increase in total emission current after the treatment. The irradiation treatment permanently straightened as-grown curly CNTs, and, as a result, the local electric field was increased, due to the increased aspect ratio and reduced mutual shield effect. In addition, increased defects, produced by the argon irradiation are likely to make their effective surfaces more active, thus emitting more electrons.

Original language	English
Pages (from-to)	232-237
Number of pages	6
Journal	Chemical Physics Letters
Volume	378
Issue number	3-4
DOIs	https://doi.org/10.1016/S0009-2614(03)01249-1
State	Published - 5 Sep 2003

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title = "Enhancement of the field emission of carbon nanotubes straightened by application of argon ion irradiation",

abstract = "The field emission properties of carbon nanotubes (CNTs) were enhanced by argon ion irradiation. Argon irradiation treatment led to an enhancement in the emission properties of CNTs which showed a decrease in turn-on field and an increase in total emission current after the treatment. The irradiation treatment permanently straightened as-grown curly CNTs, and, as a result, the local electric field was increased, due to the increased aspect ratio and reduced mutual shield effect. In addition, increased defects, produced by the argon irradiation are likely to make their effective surfaces more active, thus emitting more electrons.",

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AU - Kim, Do Hyung

AU - Jang, Hoon Sik

AU - Kim, Chang Duk

AU - Cho, Dong Soo

AU - Kang, Hee Dong

AU - Lee, Hyeong Rag

PY - 2003/9/5

Y1 - 2003/9/5

N2 - The field emission properties of carbon nanotubes (CNTs) were enhanced by argon ion irradiation. Argon irradiation treatment led to an enhancement in the emission properties of CNTs which showed a decrease in turn-on field and an increase in total emission current after the treatment. The irradiation treatment permanently straightened as-grown curly CNTs, and, as a result, the local electric field was increased, due to the increased aspect ratio and reduced mutual shield effect. In addition, increased defects, produced by the argon irradiation are likely to make their effective surfaces more active, thus emitting more electrons.

AB - The field emission properties of carbon nanotubes (CNTs) were enhanced by argon ion irradiation. Argon irradiation treatment led to an enhancement in the emission properties of CNTs which showed a decrease in turn-on field and an increase in total emission current after the treatment. The irradiation treatment permanently straightened as-grown curly CNTs, and, as a result, the local electric field was increased, due to the increased aspect ratio and reduced mutual shield effect. In addition, increased defects, produced by the argon irradiation are likely to make their effective surfaces more active, thus emitting more electrons.

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U2 - 10.1016/S0009-2614(03)01249-1

DO - 10.1016/S0009-2614(03)01249-1

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VL - 378

SP - 232

EP - 237

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 3-4

ER -

Enhancement of the field emission of carbon nanotubes straightened by application of argon ion irradiation

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