Abstract Nitrogen is an important impurity for doping carbon nanotubes (CNTs). It increases the conductivity of nanotubes, which is an important feature for field-effect transistors, emission and other nanoelectronic devices based on CNTs. In this work, we carried out a complex study of the behavior of nitrogen in nanotubes, its effect on their morphology, X-ray photoelectron spectroscopy (XPS) and Raman scattering spectra. The aim of the article is to determine the binding energies of various types of nitrogen distribution in the graphene lattice of carbon nanotubes. The goal was achieved by comparing the XPS spectra, differential gravimetric analysis, and quantum chemical calculations. It was found that a graphite-like state has the highest binding energy, which is energetically favorable during doping and creates donor centers for carbon nanotubes. Therefore, doping with nitrogen increases the conductivity of the nanotubes in most cases.

中文翻译：

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碳纳米管中的氮

摘要 氮是掺杂碳纳米管（CNTs）的重要杂质。它增加了纳米管的导电性，这是基于 CNT 的场效应晶体管、发射和其他纳米电子器件的重要特征。在这项工作中，我们对纳米管中氮的行为、其对其形态、X 射线光电子能谱 (XPS) 和拉曼散射光谱的影响进行了复杂的研究。该文章的目的是确定碳纳米管石墨烯晶格中各种类型氮分布的结合能。该目标是通过比较 XPS 光谱、微分重量分析和量子化学计算来实现的。发现类石墨状态具有最高的结合能，这在掺杂期间在能量上是有利的，并为碳纳米管创建供体中心。因此，在大多数情况下，掺杂氮会增加纳米管的导电性。