Here, we investigate, through parametrically optimized macroscale simulations, the field electron emission from arrays of carbon nanotube (CNT)-coated Spindts towards the development of an emerging class of novel vacuum electron devices. The present study builds on empirical data gleaned from our recent experimental findings on the room temperature electron emission from large area CNT electron sources. We determine the field emission current of the present microstructures directly using particle in cell (PIC) software and present a new CNT cold cathode array variant which has been geometrically optimized to provide maximal emission current density, with current densities of up to 11.5 A/cm2 at low operational electric fields of 5.0 V/μm.
展开▼
机译：在这里，我们通过参数优化的宏观模拟研究，从碳纳米管（CNT）涂覆的Spindts阵列的场电子发射向新兴的新型真空电子器件发展。本研究建立在从我们最近关于大面积CNT电子源的室温电子发射的实验发现中获得的经验数据的基础上。我们直接使用电池中粒子（PIC）软件确定当前微结构的场发射电流，并提出了一种新的CNT冷阴极阵列变体，该变体已进行几何优化以提供最大的发射电流密度，电流密度高达11.5 A / cm 2 在5.0 V /μm的低工作电场下。
展开▼
