摘要
研究了利用丝网印刷法制备碳纳米管阴极,以获取很大的发射电流。用传统的二极结构,在真空压强小于5×10-4Pa的条件下测量了用该方法制备的场发射阴极,阴极形状为直径3 mm的圆点。测量结果表明,阴极的最大发射电流达到11 mA。
A carbon nanotube cathode with high emission current has been fabricated with the screen printing method. A diode structure experiment apparatus has been set up to test this cathode in the condition of vacuum less than 5 × 10^-4 Pa. The diameter of the cathode is 3 mm. As a result, a total current up to 11 mA has been obtained.
出处
《真空电子技术》
2006年第1期1-4,共4页
Vacuum Electronics
基金
科技部973计划支持(No.2003CB314702)
关键词
碳纳米管
丝网印刷
大电流
Carbon nanotubes
Screen printing method
Large current
