Effect of ribbon width on the optical absorption of armchair Graphene nanoribbons
Paper ID : 1195-ICNS
Maryam Shahrezaei *, Seyed Ahmad Ketabi
School of Physics, Damghan University, Damghan, Iran
In this paper, we have studied the effect of the increasing width on the band structure and optical properties of Graphene nanoribbons with armchair edges (AGNRs). The work for calculating the band structure of the AGNRsis based on tight binding approximation (TB). We also used the dielectric function of the system to calculate the optical properties such as optical absorption and reflectance coefficient of the nano structure model. Our results show that the energy band gap of the AGNRs change periodically and so it improves the electronic and optical properties of AGNRs. We found that nanoribbons with 4 Benzene rings in the width have the improved energy gap for the optical properties of AGNRs. With increasing in the nanoribbon width and subsequent improvement of the electronic and optical properties of AGNRs, a new perspective is opened for the technological applications of this material, especially in the electronics and optoelectronics industries.
Armchair Graphene nanoribbon; Optical absorption; Tight binding approximation
Status : Abstract Accepted (Poster Presentation)