Theoretical infrared phonon modes and band gap calculations of a bundle of two single walled carbon nanotubes

In this paper, we report the calculation results of infrared active modes in dimer of single-walled carbon nanotubes (SWCNTs). The spectra calculations are performed using the spectral moment's method (MMS). We present the evolution of the dimers of SWNCTs infrared spectrum as a function of the diameter and chirality of the two interacting nanotubes. We investigated the electronic properties of bundle of SWCNTs and the effect of coupling between nanotubes on charge transfer processes.The results are useful for the interpretation of the future experimental data of dimer of carbon nanotubes.