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Advances in Nano Research Volume 10, Number 1, January 2021 , pages 91-99 DOI: https://doi.org/10.12989/anr.2021.10.1.091 |
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Device modelling and performance analysis of two-dimensional AlSi3 ballistic nanotransistor |
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M.W. Chuan, K.L. Wong, A. Hamzah, S. Rusli, N.E. Alias, C.S. Lim and M.L.P. Tan
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| Abstract | ||
| Silicene is an emerging two-dimensional (2D) semiconductor material which has been envisaged to be compatible with conventional silicon technology. This paper presents a theoretical study of uniformly doped silicene with aluminium (AlSi3) Field-Effect Transistor (FET) along with the benchmark of device performance metrics with other 2D materials. The simulations are carried out by employing nearest neighbour tight-binding approach and top-of-the-barrier ballistic nanotransistor model. Further investigations on the effects of the operating temperature and oxide thickness to the device performance metrics of AlSi3 FET are also discussed. The simulation results demonstrate that the proposed AlSi3 FET can achieve on-to-off current ratio up to the order of seven and subthreshold swing of 67.6 mV/dec within the ballistic performance limit at room temperature. The simulation results of AlSi3 FET are benchmarked with FETs based on other competitive 2D materials such as silicene, graphene, phosphorene and molybdenum disulphide. | ||
| Key Words | ||
| doped silicene; ballistic transport; 2D material; I-V characteristics; nanotransistor | ||
| Address | ||
| (1) M.W. Chuan, K.L. Wong, A. Hamzah, S. Rusli, N.E. Alias, C.S. Lim and M.L.P. Tan: School of Electrical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia | ||