Reconfigurable frequency multipliers based on graphene field‑effect transistors
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AuthorToral López, Alejandro; González Marín, Enrique; Pasadas Cantos, Francisco; Ganeriwala, Mohit Dineshkumar; García Ruiz, Francisco Javier; Godoy Medina, Andrés
GrapheneSplit gateFrequency multiplierReconfigurableRadio frequencyHigh frequencyField-effect transistor
Toral-Lopez, A., Marin, E.G., Pasadas, F. et al. Reconfigurable frequency multipliers based on graphene field-effect transistors. Discover Nano 18, 123 (2023). [https://doi.org/10.1186/s11671-023-03884-8]
SponsorshipResearch project P21_00149 ENERGHENE funded by Consejería de Universidad, Investigación e Innovación de la Junta de Andalucía; FEDER/Junta de Andalucía - Consejería de Transformación Económica, Industria, Conocimiento y Universidades through the projects P20-00633 and A-TIC-646-UGR20; Spanish Government through projects PID2020-116518GBI00; MCIN/AEI/10.13039/501100011033; European Union NextGenerationEU/PRTR; PAIDI 2020 and the European Social Fund Operational Programme 2014-2020 no. 20804.; European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 101032701
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.