模拟并制作了一种基于丝网印刷技术的后栅结构碳纳米管场发射显示器。采用有限元分析软件ANSYS对器件进行了电场模拟,优化了阴极宽度、阴极厚度、阴极间隙、介质层厚度等结构参数。取最优参数制作了像素为30×30,发光面积为54 mm×54 mm的单色显示屏。在阳压为1 500 V、栅压为300 V时,器件发射电流密度达到5 μA/cm2。该器件制作成本低,稳定性和均匀性良好,可矩阵寻址实现字符显示。

A screen printed under-gate triode structure device with carbon nanotube field emitters is studied and produced. The electric-field of the cathode is simulated by using the software of ANSYS and produced with the best parameters. The pixels of the device are 30×30 and the display area is 54 mm× 54 mm. The currents density achieved 5 μA/cm2 when the anode voltage was 1 500 V and gate voltages was 300 V.The device has low production cost,a good stability and uniformity,and can be matrix-addressable to display words and pictures.