MoS2 Negative-Capacitance Field-Effect Transistors with Subthreshold Swing below the Physics Limit

Advanced Materials
Xingqiang LiuZhong Lin Wang

Abstract

The Boltzmann distribution of electrons induced fundamental barrier prevents subthreshold swing (SS) from less than 60 mV dec-1 at room temperature, leading to high energy consumption of MOSFETs. Herein, it is demonstrated that an aggressive introduction of the negative capacitance (NC) effect of ferroelectrics can decisively break the fundamental limit governed by the "Boltzmann tyranny". Such MoS2 negative-capacitance field-effect transistors (NC-FETs) with self-aligned top-gated geometry demonstrated here pull down the SS value to 42.5 mV dec-1 , and simultaneously achieve superior performance of a transconductance of 45.5 μS μm and an on/off ratio of 4 × 106 with channel length less than 100 nm. Furthermore, the inserted HfO2 layer not only realizes a stable NC gate stack structure, but also prevents the ferroelectric P(VDF-TrFE) from fatigue with robust stability. Notably, the fabricated MoS2 NC-FETs are distinctly different from traditional MOSFETs. The on-state current increases as the temperature decreases even down to 20 K, and the SS values exhibit nonlinear dependence with temperature due to the implementation of the ferroelectric gate stack. The NC-FETs enable fundamental applications through overcoming the Boltzman...Continue Reading

References

Mar 27, 2010·Science·Thomas N Theis, Paul M Solomon
Jun 5, 2012·Nanoscale Research Letters·Xingqiang LiuLei Liao
Sep 11, 2012·ACS Nano·Han LiuPeide D Ye
Oct 9, 2012·ACS Nano·Dominik Lembke, Andras Kis
Jun 11, 2014·Nano Letters·Daniel J R ApplebyAnthony O'Neill
Sep 23, 2014·Nano Letters·Daria KrasnozhonAndras Kis
Dec 17, 2014·Nature Materials·Asif Islam KhanSayeef Salahuddin
Dec 30, 2014·Nano Letters·Feng Zhang, Joerg Appenzeller
Jan 24, 2015·Nature Materials·Gustau CatalanAlexei Gruverman
Sep 17, 2015·Advanced Materials·Xudong WangJunhao Chu
Nov 16, 2016·Science·Sujay B DesaiAli Javey
Dec 15, 2016·Nano Letters·Amirhasan NourbakhshTomás Palacios
Dec 20, 2017·Nature Nanotechnology·Mengwei SiPeide D Ye

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Citations

May 22, 2019·Small·Fakun WangTianyou Zhai
Jan 14, 2020·Nanotechnology·Xiao ZouWing Man Tang
Mar 5, 2020·Nanoscale Horizons : the Home for Rapid Reports of Exceptional Significance in Nanoscience and Nanotechnolgy·Wugang LiaoHan Zhang
Apr 3, 2020·Advanced Materials·Yuda ZhaoPaolo Samorì
Mar 22, 2019·Nature Communications·Zhibin ShaoJiansheng Jie
Oct 13, 2020·Advanced Materials·Yang WangJie Xiong
Feb 13, 2021·Advanced Materials·Zheng-Dong LuoMarin Alexe
Mar 4, 2021·Advanced Materials·Lizhen HuangAntonio Facchetti
Mar 5, 2019·ACS Applied Materials & Interfaces·Eric SinghHari Singh Nalwa
Oct 30, 2019·Nano Letters·Jierui LiangSusan K Fullerton-Shirey

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