Issue 10, 2019

Analysis of nonlinear characteristics of a graphene based four-terminal ballistic rectifier using a drift-diffusion model

Abstract

In this study, rectification behavior and noise spectra of a graphene based four-terminal ballistic rectifier are reported utilizing semi-classical drift-diffusion 3D modeling. The room temperature DC and RF characteristics of the novel rectifier are demonstrated considering the traps in the material similar to a real device, reducing the rectification efficiency from 0.5% to 0.35%. The responsivity and noise equivalent power of about 89.21 mV mW−1 and 97.52 pW Hz−1/2, respectively, are obtained for different frequencies varying from 50 Hz to 1 THz. Furthermore, the noise spectral analysis of the device predicts a minimum low frequency noise, which depends upon the carrier concentration inside the device active region rather than mobility, and hence enables potential applications as THz detectors for imaging.

Graphical abstract: Analysis of nonlinear characteristics of a graphene based four-terminal ballistic rectifier using a drift-diffusion model

Article information

Article type
Paper
Submitted
31 Dec 2018
Accepted
08 Sep 2019
First published
09 Sep 2019
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2019,1, 4119-4127

Analysis of nonlinear characteristics of a graphene based four-terminal ballistic rectifier using a drift-diffusion model

A. Garg, N. Jain, S. Kumar, S. R. Kasjoo and A. K. Singh, Nanoscale Adv., 2019, 1, 4119 DOI: 10.1039/C8NA00423D

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