Abstract

We used field emission microscopy to study the field desorption of sodium and cesium atoms from a rhenium field emitter precarbonized in benzene vapor. The dependences of the ion currents of sodium and cesium on the voltage applied to the field emitter differ. The difference in the ion current dependences is explained by the formation of multilayer graphene on the crystalline surface of a rhenium field emitter in the regions of low-index faces and its intercalation by alkali metal atoms with different ionization potentials and different atomic and ionic radii.

中文翻译：

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碳化R场发射体表面钠和铯的场解吸特征

摘要

我们使用场发射显微镜研究了在苯蒸气中预碳化的rh场发射体中钠和铯原子的场解吸。钠和铯的离子电流对施加到场发射器的电压的依赖性不同。离子电流依赖性的差异可以通过在低折射率面区域中的field场发射器的晶体表面上形成多层石墨烯以及其被具有不同电离势和不同原子和离子半径的碱金属原子嵌入来解释。