摘要
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.
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.
基金
Project supported by the National High Technology Research and Development Program of China (Grant No. 2008AA03A313)
the Natural Science Foundation of Fujian Province of China (Grant No. 2009J05145)
