Reconfigurable frequency multipliers based on graphene field-effect transistors
Toral-Lopez, Alejandro (Universidad de Granada. Departamento de Electrónica y Tecnología de Computadores)
Marin, Enrique G. (Universidad de Granada. Departamento de Electrónica y Tecnología de Computadores)
Pasadas, Francisco (Universidad de Granada. Departamento de Electrónica y Tecnología de Computadores)
Ganeriwala, M. D. (Universidad de Granada. Departamento de Electrónica y Tecnología de Computadores)
Garcia Ruiz, Francisco J. (Universidad de Granada. Departamento de Electrónica y Tecnología de Computadores)
Jiménez, David (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Godoy Medina, Andres (Universidad de Granada. Departamento de Electrónica y Tecnología de Computadores)

Data:	2023
Resum:	Run-time device-level reconfigurability has the potential to boost the performance and functionality of numerous circuits beyond the limits imposed by the integration density. The key ingredient for the implementation of reconfigurable electronics lies in ambipolarity, which is easily accessible in a substantial number of two-dimensional materials, either by contact engineering or architecture device-level design. In this work, we showcase graphene as an optimal solution to implement high-frequency reconfigurable electronics. We propose and analyze a split-gate graphene field-effect transistor, demonstrating its capability to perform as a dynamically tunable frequency multiplier. The study is based on a physically based numerical simulator validated and tested against experiments. The proposed architecture is evaluated in terms of its performance as a tunable frequency multiplier, able to switch between doubler, tripler or quadrupler operation modes. Different material and device parameters are analyzed, and their impact is assessed in terms of the reconfigurable graphene frequency multiplier performance.
Ajuts:	Agencia Estatal de Investigación PID2020-116518GB-I00 Ministerio de Ciencia e Innovación TED2021-129769B-I00 European Commission 101032701
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Graphene ; Split gate ; Frequency multiplier ; Reconfigurable ; Radio frequency ; High frequency ; Field-effect transistor
Publicat a:	Discover Nano, Vol. 18 (October 2023) , art. 123, ISSN 2731-9229

DOI: 10.1186/s11671-023-03884-8
PMID: 37798402

10 p, 1.9 MB

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