Abstract

A new interpretation of the emission properties of carbon nanotubes is presented using the theory of electron conjugation. The presence of emission molecular states in the energy spectrum of carbon nanotubes, characterized by specific localization of electron density on the end surfaces of carbon nanotubes, is explained from the viewpoint of the concepts of in-plane and ρ-electron conjugation. Based on an analysis of the behavior of emission molecular orbitals in a constant electric field, it is concluded that such localization of electron density is the physical basis for electron emission. It is established that this approach describes known experimental and theoretical results well and can be used to predict the emission properties of a wide range of objects.

中文翻译：

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单壁碳纳米管中电子的场发射机理

摘要

利用电子共轭理论提出了对碳纳米管发射特性的新解释。从平面内和π电子共轭的概念出发，解释了碳纳米管能谱中发射分子态的存在，其特征在于电子密度在碳纳米管端面上的特定定位。根据对恒定电场中发射分子轨道行为的分析，可以得出这样的结论：电子密度的这种局部化是电子发射的物理基础。可以确定的是，该方法很好地描述了已知的实验和理论结果，可用于预测各种物体的发射特性。