cathode emission current density 阴极发射电流密度
high emission current density 大发射电流密度
field emission current density 场致发射电流密度
But it provides too small emission current density 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。
Finally we discuss the differences of turn-on voltage, field emission current density 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。
Vacuum micro-electronics devices, which are based on field emission theory, are more and more widely applied, because of their low power consumption, high current density and high frequency.
以场致发射理论为基础的真空微电子器件，因其具有功耗低、电流密度大、频率高等诸多优点而倍受人们关注。
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