摘要
针对碳纳米管场发射显示器的实际工作环境,计算给出了碳纳米管在垂直、与垂直碳纳米管等长倾斜45°和与垂直碳纳米管等高倾斜45°放置3种情况下的空间电势分布和电场分布,数值计算表明在上述3种情况下的碳纳米管尖端表面附近的电场强度比值约为13:10:12。进一步分析说明在垂直和倾斜碳纳米管同时存在的情况下,要提高电子发射的均匀性,就必须提高倾斜碳纳米管的高度。
In view of actual environment of carbon nanotubes - field emission display, the electric field and electric potential distribution of single vertical carbon nanotube, including 45o with the same length of the vertical one and 45o with the same height, are calculated respectively. The results indicate that the electric field intensity＇s ratio for the three types of carbon nanotubes is about 13 ： 10 ： 12. The further analysis shows that if the uniformity of field emission is desired to obtain improvement, the height of inclining carbon nanotubes should be increased on condition that the vertical and inclining carbon nanotubes exist simultaneously in the cathode of field emission display.
出处
《空军工程大学学报（自然科学版）》
CSCD
北大核心
2007年第5期67-69,共3页
Journal of Air Force Engineering University(Natural Science Edition)
基金
陕西省自然科学基础研究计划资助项目(2006F32)
关键词
碳纳米管
场发射
电场强度
carbon nanotube
field emission
electric field intensity
