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Effect of boron impurity in a carbon nanotube superlattice

Zahra Karimi Ghobadi

Young Researchers and Elites Club, North Tehran Branch, Islamic Azad University, Tehran, Iran

E-mail Address: zahrakarimi19@gmail.com

Corresponding author.

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Aliasghar Shokri

Department of Physics, Tehran Payame Noor University (PNU), Tehran 19395-3697, Iran

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, and

Sonia Zarei

Department of Physics, Tarbiat Modares University, Tehran, Iran

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https://doi.org/10.1142/S0217979217501065Cited by:1 (Source: Crossref)

Abstract

In this work, the influence of boron atom impurity is investigated on the electronic properties of a single-wall carbon nanotube superlattice which is connected by pentagon–heptagon topological defects along the circumference of the heterojunction of these superlattices. Our calculation is based on tight-binding $π$ $π$ -electron method in nearest-neighbor approximation. The density of states (DOS) and electronic band structure in presence of boron impurity has been calculated. Results show that when boron atom impurity and nanotube atomic layers have increased, electronic band structure and the DOS have significant changes around the Fermi level.

Keywords:

PACS: 73.63.-b, 85.35.Kt

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