TY - JOUR A1 - Ferhati, Hichem A1 - Djeffal, Fayçal A1 - Bentrcia, Toufik T1 - The role of the Ge mole fraction in improving the performance of a nanoscale junctionless tunneling FET: concept and scaling capability JF - Beilstein Journal of Nanotechnology PY - 2018/// VL - 9 SP - 1856 EP - 1862 SN - 2190-4286 DO - 10.3762/bjnano.9.177 PB - Beilstein-Institut JA - Beilstein J. Nanotechnol. UR - https://doi.org/10.3762/bjnano.9.177 KW - ambipolar conduction KW - heterojunctions KW - junctionless tunneling field-effect transistor (JL TFET) KW - nanoscale KW - SiGe N2 - In this paper, a new nanoscale double-gate junctionless tunneling field-effect transistor (DG-JL TFET) based on a Si1−xGex/Si/Ge heterojunction (HJ) structure is proposed to achieve an improved electrical performance. The effect of introducing the Si1−xGex material at the source side on improving the subthreshold behavior of the DG-JL TFET and on suppressing ambipolar conduction is investigated. Moreover, the impact of the Ge mole fraction in the proposed Si1−xGex source region on the electrical figures of merit (FoMs) of the transistor, including the swing factor and the ION/IOFF ratio is analyzed. It is found that the optimized design with 60 atom % of Ge offers improved switching behavior and enhanced derived current capability at the nanoscale level, with a swing factor of 42 mV/dec and an ION/IOFF ratio of 115 dB. Further, the scaling capability of the proposed Si1−xGex/Si/Ge DG-HJ-JL TFET structure is investigated and compared to that of a conventional Ge-DG-JL TFET design, where the optimized design exhibits an improved switching behavior at the nanoscale level. These results make the optimized device suitable for designing digital circuit for high-performance nanoelectronic applications. ER - TY - ELEC T1 - International Technology Roadmap for Semiconductors - ITRS 2.0 Home Page UR - http://itrs2.net ER - TY - JOUR AU - Chen, Q. AU - Meindl, J. D. 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