Improving the field-emission properties of carbon nanotubes by magnetically controlled nickel-electroplating treatment |
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Authors: | Zheng Long-Wu Hu Li-Qin Xiao Xiao-Jing Yang Fan Lin He and Guo Tai-Liang |
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Institution: | Institute of Optoelectronic Display Technology, School of Physics and Information Engineering, Fuzhou University, Fuzhou 350002, China |
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Abstract: | 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 100 μA/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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Keywords: | carbon nanotubes|magnetic field|field emission|Ni-electroplate |
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