Nitrogen doping effects on the structure behavior and the field emission performance of double-walled carbon nanotubes

Kyoung Yong Chun; Heon Sang Lee; Cheol Jin Lee

doi:10.1016/j.carbon.2008.09.047

Nitrogen doping effects on the structure behavior and the field emission performance of double-walled carbon nanotubes

Kyoung Yong Chun, Heon Sang Lee, Cheol Jin Lee

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97 Citations (Scopus)

Abstract

The nitrogen (N) doping effect and field emission properties of double-walled carbon nanotubes (DWCNTs) were investigated. Diameter transformation and defect generation in the N-doped DWCNTs mainly depend on the amount of nitrogen employed. By applying N-doping into DWCNTs (1.5 N at.%), the average diameters of the DWCNTs were increased from 1.7 to 2.4 nm, and the crystallinity (I_G/I_D) was decreased from 13.5 to 5. Field emission properties were enhanced by the N doping into DWCNTs. The turn-on field, corresponding to a current density of 0.1 μA/cm², was about 0.9 V/μm for the N-doped DWCNTs (1.5 N at.%). The field enhancement factor of the N-doped DWCNTs was higher than that of the undoped DWCNTs. It was found that the field emission properties were controlled by pyridine-like N in the graphite due to N-doping.

Original language	English
Pages (from-to)	169-177
Number of pages	9
Journal	Carbon
Volume	47
Issue number	1
DOIs	https://doi.org/10.1016/j.carbon.2008.09.047
Publication status	Published - 2009 Jan

Bibliographical note

Funding Information:
This work was supported by the Korea Science and Engineering Foundation (KOSEF) NRL Program grant funded by the Korea government (MEST) (No. R0A-2008-000-20071-0) and by KBSI and by the Ministry of Commerce, Industry, and Energy of Korea through a Components and Materials Technology Development project and by the Korea Foundation for International Cooperation of Science & Technology (KICOS) through a grant provided by the Korean Ministry of Science & Technology (MOST) in K20601000002-07E0100-00220. The authors wish to thank Seung Il Jung for measurement of the field emission properties.

ASJC Scopus subject areas

General Chemistry
General Materials Science

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title = "Nitrogen doping effects on the structure behavior and the field emission performance of double-walled carbon nanotubes",

abstract = "The nitrogen (N) doping effect and field emission properties of double-walled carbon nanotubes (DWCNTs) were investigated. Diameter transformation and defect generation in the N-doped DWCNTs mainly depend on the amount of nitrogen employed. By applying N-doping into DWCNTs (1.5 N at.%), the average diameters of the DWCNTs were increased from 1.7 to 2.4 nm, and the crystallinity (IG/ID) was decreased from 13.5 to 5. Field emission properties were enhanced by the N doping into DWCNTs. The turn-on field, corresponding to a current density of 0.1 μA/cm2, was about 0.9 V/μm for the N-doped DWCNTs (1.5 N at.%). The field enhancement factor of the N-doped DWCNTs was higher than that of the undoped DWCNTs. It was found that the field emission properties were controlled by pyridine-like N in the graphite due to N-doping.",

author = "Chun, {Kyoung Yong} and Lee, {Heon Sang} and Lee, {Cheol Jin}",

note = "Funding Information: This work was supported by the Korea Science and Engineering Foundation (KOSEF) NRL Program grant funded by the Korea government (MEST) (No. R0A-2008-000-20071-0) and by KBSI and by the Ministry of Commerce, Industry, and Energy of Korea through a Components and Materials Technology Development project and by the Korea Foundation for International Cooperation of Science & Technology (KICOS) through a grant provided by the Korean Ministry of Science & Technology (MOST) in K20601000002-07E0100-00220. The authors wish to thank Seung Il Jung for measurement of the field emission properties.",

year = "2009",

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doi = "10.1016/j.carbon.2008.09.047",

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AU - Chun, Kyoung Yong

AU - Lee, Heon Sang

AU - Lee, Cheol Jin

N1 - Funding Information: This work was supported by the Korea Science and Engineering Foundation (KOSEF) NRL Program grant funded by the Korea government (MEST) (No. R0A-2008-000-20071-0) and by KBSI and by the Ministry of Commerce, Industry, and Energy of Korea through a Components and Materials Technology Development project and by the Korea Foundation for International Cooperation of Science & Technology (KICOS) through a grant provided by the Korean Ministry of Science & Technology (MOST) in K20601000002-07E0100-00220. The authors wish to thank Seung Il Jung for measurement of the field emission properties.

PY - 2009/1

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N2 - The nitrogen (N) doping effect and field emission properties of double-walled carbon nanotubes (DWCNTs) were investigated. Diameter transformation and defect generation in the N-doped DWCNTs mainly depend on the amount of nitrogen employed. By applying N-doping into DWCNTs (1.5 N at.%), the average diameters of the DWCNTs were increased from 1.7 to 2.4 nm, and the crystallinity (IG/ID) was decreased from 13.5 to 5. Field emission properties were enhanced by the N doping into DWCNTs. The turn-on field, corresponding to a current density of 0.1 μA/cm2, was about 0.9 V/μm for the N-doped DWCNTs (1.5 N at.%). The field enhancement factor of the N-doped DWCNTs was higher than that of the undoped DWCNTs. It was found that the field emission properties were controlled by pyridine-like N in the graphite due to N-doping.

AB - The nitrogen (N) doping effect and field emission properties of double-walled carbon nanotubes (DWCNTs) were investigated. Diameter transformation and defect generation in the N-doped DWCNTs mainly depend on the amount of nitrogen employed. By applying N-doping into DWCNTs (1.5 N at.%), the average diameters of the DWCNTs were increased from 1.7 to 2.4 nm, and the crystallinity (IG/ID) was decreased from 13.5 to 5. Field emission properties were enhanced by the N doping into DWCNTs. The turn-on field, corresponding to a current density of 0.1 μA/cm2, was about 0.9 V/μm for the N-doped DWCNTs (1.5 N at.%). The field enhancement factor of the N-doped DWCNTs was higher than that of the undoped DWCNTs. It was found that the field emission properties were controlled by pyridine-like N in the graphite due to N-doping.

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Nitrogen doping effects on the structure behavior and the field emission performance of double-walled carbon nanotubes

Abstract

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