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arXiv 2103.08519physics.app-phcond-mat.mtrl-sci
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二维材料场效应晶体管射频性能的多尺度分析

Multi-scale analysis of radio-frequency performance of 2D-material based field-effect transistors

A. Toral-Lopez, F. Pasadas, E. G. Marin, A. Medina-Rull, J. M. Gonzalez-Medina, F. G. Ruiz, D. Jiménez, A. Godoy

摘要:

二维材料(2DM)是补充和升级高频电子学的一种有前途的替代方案。然而,为了促进它们的采用,能够支持实验活动并为它们提供有用的指导方针的数值工具和基于物理的模型的可用性变得至关重要。在这种情况下,我们提出了一种理论方法,结合数值模拟和小信号建模来分析基于2DM的FET的射频应用。这种多尺度方案考虑到非理想性,如界面陷阱,载流子速度饱和或短沟道效应,通过自洽的基于物理的数值计算,后来通过基于器件的动态本征电容的小信号模型馈送电路电平。在电路阶段,可能性范围从单个器件的性能评估到结合多个晶体管的复杂电路的设计。在这项工作中,我们验证了我们的计划对实验结果,并评估其使用和能力的影响的沟道缩放的基于二硫化钼的场效应晶体管的RF应用的性能。

英文摘要:

Two-dimensional materials (2DMs) are a promising alternative to complement and upgrade high-frequency electronics. However, in order to boost their adoption, the availability of numerical tools and physically-based models able to support the experimental activities and to provide them with useful guidelines becomes essential. In this context, we propose a theoretical approach that combines numerical simulations and small-signal modeling to analyze 2DM-based FETs for radio-frequency applications. This multi-scale scheme takes into account non-idealities, such as interface traps, carrier velocity saturation, or short channel effects, by means of self-consistent physics-based numerical calculations that later feed the circuit level via a small-signal model based on the dynamic intrinsic capacitances of the device. At the circuit stage, the possibilities range from the evaluation of the performance of a single device to the design of complex circuits combining multiple transistors. In this work, we validate our scheme against experimental results and exemplify its use and capability assessing the impact of the channel scaling on the performance of MoS2-based FETs targeting RF applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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