Noise analysis of coaxial Schottky barrier carbon nanotube fets using non equilibrium Green’s function formalism

• Authors: Iman Hassaninia , Rahim Ghayour , Habib Abiri , Mohammad Sheikhi
• Languages of publication: EN

Abstracts

EN

The effect of noise on the performance of Schottky Barrier Carbon Nanotube Field Effect Transistors (SB-CNTFETs) has been investigated under various bias conditions. In order to calculate the noise power spectral density, the Non-Equilibrium Green’s Function formalism (NEGF) is used to obtain the transmission coefficient and the number of carriers inside the channel. Results are presented in two sections: In the first section the Hooge’s empirical rule is used to investigate the flicker noise properties of SB-CNTFETs with defects in the gate oxide region, while in the second section the thermal and shot noise properties of SB-CNTFETs are studied. Finally, the best bias points in the ON and OFF states have been suggested according to the total noise power spectral density and the device signal to noise ratio.

Keywords

EN

noise; tunneling; CNTFET; power spectral density; Schottky barrier

Discipline

• 02.: Mathematical methods in physics
• 66.35.+a: Quantum tunneling of defects
• 72.10.-d: Theory of electronic transport; scattering mechanisms
• 72.10.Bg: General formulation of transport theory
• 72.70.+m: Noise processes and phenomena

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2009
• Volume: 7
• Issue: 4
• Pages: 813-820

Dates

published

1 - 12 - 2009

online

21 - 7 - 2009

Contributors

author

Iman Hassaninia

• Department of Electrical and Electronic Engineering, Shiraz University, Shiraz, Iran

author

Rahim Ghayour

• Department of Electrical and Electronic Engineering, Shiraz University, Shiraz, Iran

author

Habib Abiri

• Department of Electrical and Electronic Engineering, Shiraz University, Shiraz, Iran

author

Mohammad Sheikhi

• Department of Electrical and Electronic Engineering, Shiraz University, Shiraz, Iran

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Identifiers

DOI

10.2478/s11534-009-0051-7