The new composites of carbon nanotube with silicon dioxide (SiO{sub}2) nanopartical for FED cathode is studied, It has significantly improved emission current density property and stable emission characterization of cathode, because it has higher enhancement factor and less shield-effect by adjusting silicon nanopartical content. The results indicated that when about 80wt % CNT is optimum content, the current density at the electric field 2 V/μm is 56mA/mm{sup}2, the turn-on field of the CNTs cathode was about 0.71V/μm. The fluctuation of emission current is less than 3% for three hours.
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机译：研究了用二氧化硅（SiO {Sub} 2）纳米颗粒的新组合材料，用于喂养阴极，它具有显着提高的发射电流密度性能和阴极的稳定排放表征，因为它具有更高的增强因子和较少的盾构效果调节硅纳米型含量。结果表明，当大约80wt％CNT是最佳含量时，电场2V /μm处的电流密度为56mA / mm {sup} 2，CNT阴极的导通面积为约0.71V /μm。发射电流的波动小于3％3小时。
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