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

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 materia...

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Detalles Bibliográficos
Autores principales: Garg, Ankur, Jain, Neelu, Kumar, Sanjeev, Kasjoo, Shahrir R., Singh, Arun Kumar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: RSC 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9419781/
https://www.ncbi.nlm.nih.gov/pubmed/36132099
http://dx.doi.org/10.1039/c8na00423d
Descripción
Sumario: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.