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Raad Chegel

Raad Chegel

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId:
HIndex: 0/00
Faculty: science
Address: Malayer University
Phone: 09188899031

Research

Title
Third-Nearest-Neighbors Tight-Binding Description of Optical Response of Carbon Nanotubes: Effects of Chirality and Diameter
Type
JournalPaper
Keywords
Nanotubes tight binding optical properties magnetic field
Year
2015
Journal JOURNAL OF ELECTRONIC MATERIALS
DOI
Researchers Raad Chegel

Abstract

We have applied a third nearest-neighbor tight binding model to investigate the optical properties of CNTs in terms of radius, chirality and magnetic field. The optical spectrum of CNTs depends strongly on the radius and chirality in the infrared region in contrast to the middle energy region. The dependence of E 22/E 11 on the radius and chirality from optical peak positions and band structure is similar. In the infrared region, by applying the magnetic field, the optical peak splitting rates show well-expressed radius and chirality dependence and family behaviors.