Improving the field-emission properties of carbon nanotubes by magnetically controlled nickel-electroplating treatment

A novel magnetically controlled Ni-plating method has been developed to improve the field-emission properties of carbon nanotubes （CNTs）. The effect of the magnetic field and Ni-electroplating on CNT field-emission properties was investigated, and the results are demonstrated using scanning electron...

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Bibliographic Details
Published inChinese physics B Vol. 20; no. 12; pp. 456 - 460
Main Author 郑隆武 胡利勤 肖晓晶 杨帆 林贺 郭太良
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.12.2011
Subjects
Brightness
Carbon nanotubes
CNTs
Current density
Electric fields
Emission
Magnetic fields
Magnetic properties
Nickel
Variability
发射电流密度
场发射性能
扫描电子显微镜
电镀处理
碳纳米管
磁控制
镀镍
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/20/12/128502

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Summary:A novel magnetically controlled Ni-plating method has been developed to improve the field-emission properties of carbon nanotubes （CNTs）. The effect of the magnetic field and Ni-electroplating on CNT field-emission properties was investigated, and the results are demonstrated using scanning electron microscopy, J-E and the duration test. After treatment, the turn-on electric field declines from 1.55 to 0.91 V/μm at an emission current density of 100μA/cm2, and the emission current density increases from 0.011 to 0.34 mA/cm2 at an electric field of 1.0 V/μm. Both the brightness and uniformity of the CNT emission performance are improved after treatment.
Bibliography:carbon nanotubes, magnetic field, field emission, Ni-electroplate
11-5639/O4
A novel magnetically controlled Ni-plating method has been developed to improve the field-emission properties of carbon nanotubes （CNTs）. The effect of the magnetic field and Ni-electroplating on CNT field-emission properties was investigated, and the results are demonstrated using scanning electron microscopy, J-E and the duration test. After treatment, the turn-on electric field declines from 1.55 to 0.91 V/μm at an emission current density of 100μA/cm2, and the emission current density increases from 0.011 to 0.34 mA/cm2 at an electric field of 1.0 V/μm. Both the brightness and uniformity of the CNT emission performance are improved after treatment.
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ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/20/12/128502