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Simulation of carbon nanotube field-effect devices

Ab initio quantum mechanical numerical simulations have been used to study electronic transport in nanoscale electronic devices. We have developed a new code based on self-consistent density-functional tight-binding (DFTB) method and non-equilibrium Green's function (NEGF) formalism. Using this...

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Main Authors:	Latessa, L., Pecchia, A., Di Carlo, A., Scarpa, G., Lugli, P.
Format:	Conference Proceeding
Language:	English
Subjects:	Applied sciences Boundary conditions Carbon nanotubes Coaxial components Electronic equipment and fabrication. Passive components, printed wiring boards, connectics Electronics Electrostatics Exact sciences and technology Geometry Green's function methods Molecular electronics, nanoelectronics Nanoscale devices Numerical simulation Quantum mechanics Semiconductivity Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Transistors
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creator	Latessa, L. Pecchia, A. Di Carlo, A. Scarpa, G. Lugli, P.
description	Ab initio quantum mechanical numerical simulations have been used to study electronic transport in nanoscale electronic devices. We have developed a new code based on self-consistent density-functional tight-binding (DFTB) method and non-equilibrium Green's function (NEGF) formalism. Using this approach, we investigate the coherent transport properties of a long semiconducting CNT when the source-drain current is modulated by a coaxial gate. Exact boundary conditions for the electrostatic potential in the coaxial gate geometry are taken into account solving in real space a 3D Poisson equation. Results stress the importance of a good electrostatic-design of the gate contact to obtain the same field-effect modulation we have in conventional planar MOSFET.
doi_str_mv	10.1109/NANO.2004.1392232
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identifier	ISBN: 0780385365
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source	IEEE Electronic Library (IEL) Conference Proceedings
subjects	Applied sciences Boundary conditions Carbon nanotubes Coaxial components Electronic equipment and fabrication. Passive components, printed wiring boards, connectics Electronics Electrostatics Exact sciences and technology Geometry Green's function methods Molecular electronics, nanoelectronics Nanoscale devices Numerical simulation Quantum mechanics Semiconductivity Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Transistors
title	Simulation of carbon nanotube field-effect devices
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