A Non-Vacuum Field Emission Device

本文介绍了一种不需要高真空即可运行的高速场发射三极管器件。这是通过在微尖端阴极上涂上最近发明的非常低功函数的金刚石时间膜来实现的，这样从阴极提取电子的电场就小于每微米5伏。因此，在阴极和栅极之间只需要施加5伏特的电压来提取电子，使该设备与标准半导体电子兼容。同时，低压电子在空气中的平均自由程比阴极-阳极分离长，因此这种装置的非真空操作是可能的。在第一阶段，我们建议通过设计，计算机建模和制造二极管和三极管型场发射器件来证明这种高速器件的可行性。＊＊＊

9361273 Kumar In this proposal, a high speed field emission triode device is described which does not require high vacumm for operation. This is enabled by coating a micro-tip cathode with recently invented very low work function diamond time film, such that the electric field to extract electrons from the cathode is less than 5 volts per micrometer. Hence a voltage of only 5 volts need be applied between the cathode and the grid to extract electrons making this device compatible with standard semiconductor electronics. At the same time, low voltage electrons have mean free paths in air which are longer than the cathode-anode separation, thereby a non-vacuum operation of such a device may be possible. In phase I, we propose to demonstrate the feasibility of such a high speed device by designing, computer modeling and fabrication diode and triode type field emitter devices. ***