Transport characteristics of nanoconstricted graphene with and with out point defects

Author

Deepak, S. ; Manoharan, M. ; Mizuta, Hiroshi

Author_Institution

Design & Manuf. (IIITD&M Kancheepuram), Indian Inst. of Inf. Technol., Chennai, India

fYear

2011

fDate

28-30 Nov. 2011

Firstpage

300

Lastpage

303

Abstract

Using calculations based on Density Functional Theory and Non Equilibrium Green´s Function techniques, we calculate the electronic transport properties of nanoconstriction introduced armchair graphene nanoribbons (AGNR) and analyze its transport characteristics. We study the change in transport properties when point defects like Single Vacancy defect, Double Vacancy defect and Stone-Wales defect are introduced in the nanoconstricted region. These defects can be created during electron/Helium ion beam exposure.

Keywords

Green´s function methods; density functional theory; electron beam effects; electronic density of states; graphene; ion beam effects; nanoribbons; tunnelling; vacancies (crystal); C; Stone-Wales defect; armchair graphene nanoribbons; density functional theory; double vacancy defect; electron tunnelling; electron-helium ion beam exposure; electronic transport properties; nanoconstriction; nonequilibrium Green´s function method; point defects; single vacancy defect; total density-of-states; DFT; graphene; point defects; tunnel junction;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoscience, Engineering and Technology (ICONSET), 2011 International Conference on

Conference_Location

Chennai

Print_ISBN

978-1-4673-0071-1

Type

conf

DOI

10.1109/ICONSET.2011.6167968

Filename

6167968