But it provides too small emissioncurrentdensity and gives a large gate current.
但不足之处是发射电流密度太小和有较大的栅极电流。
2
Finally we discuss the differences of turn-on voltage, field emissioncurrentdensity and the stability of field emission display because the differences of the cathode of field emission.
并讨论由此而导致的开启电场的变化、场发射电流密度的变化以及亮度和稳定性的变化。
3
Vacuum micro-electronics devices, which are based on field emission theory, are more and more widely applied, because of their low power consumption, high currentdensity and high frequency.