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US07638933B2 Electron emission device comprising carbon nanotubes yarn and method for generating emission current 有权
包含碳纳米管纱线的电子发射装置和产生发射电流的方法

Electron emission device comprising carbon nanotubes yarn and method for generating emission current
摘要：
An exemplary electron emission device includes an electron emitter, an anode opposite to and spaced apart from the electron emitter, a first power supply circuit, and a second power supply circuit. The first power supply circuit is configured for electrically connecting the electron emitter and the anode with a power supply to generate an electric field between the electron emitter and the anode. The second power supply circuit is configured for electrically connecting the electron emitter with a power supply to supply a heating current for heating the electron emitter whereby electrons emit therefrom. Methods for generating an emission current with a relatively higher stability also are provided.
摘要（中）：

示例性的电子发射装置包括电子发射极，与电子发射极相对且间隔开的阳极，第一电源电路和第二电源电路。 第一电源电路被配置为用电源电连接电子发射器和阳极，以在电子发射器和阳极之间产生电场。 第二电源电路被配置为将电子发射器与电源电连接以提供用于加热电子发射器的加热电流，从而电子从其发射。 还提供了用于产生具有相对较高稳定性的发射电流的方法。

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