Authors: Chuong Van Nguyen Nguyen Van Hieu Huynh Ngoc Toan Le Cong Nhan Ngo Thi Anh Nguyen Ngoc Hieu
Publish Date: 2017/03/07
Volume: 46, Issue: 6, Pages: 3815-3819
Abstract
In this work the effect of Peierls distortion on the electronic properties of armchair graphene nanoribbons is theoretically studied in a tightbinding approximation As a consequence of Peierls distortion when the Kekuletype bond alternation is introduced the band gap of armchair nanoribbons strongly depends on the difference in bond length between short and long bonds in the honeycomb lattice We can control the band gap of a nanoribbon by its uniaxial strain and a semiconductor–metal phase transition can occur at certain elongations
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