Study on emission stability and uniformity of a CNT cathode
An efficient method is used to improve the emission stability and uniformity of the field emission from a CNT cathode. In this method, a fully sealed device with CNTs cathode is exhausted by a pumping system. At the same time, this device is baking at a temperature about 400℃ and maintains for a few minutes, and an overload current is applied. The overload current can burn the nanotubes which are over-outcrop to the surface. Besides this, successive emission cycles process is designed to aging the cathode and get rid of the residual gas stored in the cathode layer. Consequently, the emission stability and uniformity of a CNTs cathode have been improved apparently.
Yunsong Di Wei Lei Xiaobing Zhang Yunkang Cui Jing Chen Kairong Chu Jinchan Wang
Dept. of Electronic Engineering, Southeast University, Nanjing 210096, P. R. China;School of Physics Dept. of Electronic Engineering, Southeast University, Nanjing 210096, P. R. China Dept. of Electronic Engineering, Southeast University, Nanjing 210096, P. R. China;Dept. of Basic Co
国际会议
桂林
英文
347-348
2006-07-17（万方平台首次上网日期，不代表论文的发表时间）