A superaligned carbon nanotube (SACNT) film can act as an ideal gate electrode in vacuum electronics due to its low secondary electron emission, high electron transparency, ultrasmall thickness, highly uniform electric field, high melting point, and high mechanical strength. We used a SACNT film as the gate electrode in a thermionic emission electron tube and field emission display prototype. The SACNT film gate in a thermionic emission electron tube shows a larger amplification factor. A triode tube with the SACNT film gate is used in an audio amplification circuit. The SACNT film gate electrode in field emission devices shows better field uniformity. The field emission display prototype is demonstrated to dynamically display Chinese characters.

中文翻译：

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真空电子设备中的碳纳米管薄膜浇口

超取向碳纳米管（SACNT）膜具有低二次电子发射，高电子透明性，超薄厚度，高度均匀的电场，高熔点和高机械强度，因此可以用作真空电子设备中的理想栅电极。我们在热电子发射电子管和场发射显示器原型中将SACNT膜用作栅电极。热电子发射电子管中的SACNT膜栅极显示出较大的放大系数。具有SACNT薄膜栅极的三极管用于音频放大电路。场发射器件中的SACNT薄膜栅电极显示出更好的场均匀性。演示了场发射显示原型可以动态显示汉字。