NDLI: Modeling the doping effect in carbon nanotubes for enhanced conductance

Content Provider	IEEE Xplore Digital Library
Author	Kumar, R. Kaur, K. Lamba, V. Engles, D.
Copyright Year	2013
Description	Author affiliation: Global Coll. of Eng. & Technol., Khanpur Khui, India (Lamba, V.; Engles, D.) \|\| Guru Nanak Dev Univ., Amritsar, India (Kumar, R.; Kaur, K.)
Abstract	In this work we have modelled and simulated the electronic charge transport properties for a Single-walled Carbon Nano-tube with different geometries using first-principle calculations and Non equilibrium Green's function (NEGF) method. We modeled a Single-walled Carbon Nano-tube by rolling Zigzag (4,0) Graphene Nanoribbon strips with the different doping atoms (S,N,P) using semi-empirical Extended Huckle Theory (EHT) within the framework of non-equilibrium green function (NEGF). The simulations were carried in Device mode using Atomistic Tool Kit (ATK-12.8.2) and its graphical interface (custom analyzer) Virtual Nano Lab till the self-consistent results was reached. The effect of the change in conductance and I-V characteristics of the junction was visualized for various transport parameters. The distinct changes in conductance reported as the positions , concentration and type of dopants was varied in central region of the CNT between two electrodes at different bias voltages from -1V to 1 V with steps of .25 V. This suggested conductance enhancement mechanism for the charge transport in the doped Single-walled Carbon Nano-tube at different positions is important for the design of CNT based nano electronic devices.
Starting Page	221
Ending Page	223
File Size	970006
Page Count	3
File Format	PDF
ISBN	9781479913770
e-ISBN	9781479913794
DOI	10.1109/ICANMEET.2013.6609282
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-24
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Semiconductor device modeling Quantum computing NEGF Electronic charge Transport Quantum mechanics Dopants Atomistic Tool Kit (ATK-12.8.2) Extended Huckle Theory (EHT) GNRs Carbon SWCNT
Content Type	Text
Resource Type	Article

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