skip to main content

SciTech ConnectSciTech Connect

Title: Rectification induced in N{sub 2}{sup AA}-doped armchair graphene nanoribbon device

By using non-equilibrium Green function formalism in combination with density functional theory, we investigated the electronic transport properties of armchair graphene nanoribbon devices in which one lead is undoped and the other is N{sub 2}{sup AA}-doped with two quasi-adjacent substitutional nitrogen atoms incorporating pairs of neighboring carbon atoms in the same sublattice A. Two kinds of N{sub 2}{sup AA}-doped style are considered, for N dopants substitute the center or the edge carbon atoms. Our results show that the rectification behavior with a large rectifying ratio can be found in these devices and the rectifying characteristics can be modulated by changing the width of graphene nanoribbons or the position of the N{sub 2}{sup AA} dopant. The mechanisms are revealed to explain the rectifying behaviors.
Authors:
; ; ;  [1] ;  [1] ;  [2]
  1. School of Physics and Microelectronic and Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan University, Changsha 410082 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22306170
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 116; Journal Issue: 1; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; DENSITY FUNCTIONAL METHOD; DOPED MATERIALS; EQUILIBRIUM; EQUIPMENT; GRAPHENE; GREEN FUNCTION; NANOELECTRONICS; NANOSTRUCTURES; NITROGEN ADDITIONS