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We present a quasi-analytical model for Tunnel Field Effect Transistors (TFETs) that includes the microscopic physics and chemistry of interfaces and non-idealities. The ballistic band-to-band tunneling current is calculated by modifying…

材料科学 · 物理学 2018-11-14 Sheikh Z. Ahmed , Yaohua Tan , Daniel S. Truesdell , Benton H. Calhoun , Avik W. Ghosh

Theoretical predictions are made for the current-voltage characteristics of two-dimensional heterojunction interlayer tunneling field-effect transistors (Thin-TFETs), focusing on the magnitude of the current that is achievable in such…

介观与纳米尺度物理 · 物理学 2017-09-22 Jun Li , Yifan Nie , Kyeongjae Cho , Randall M. Feenstra

III-V tunneling field-effect transistors (TFETs) offer great potentials in future low-power electronics application due to their steep subthreshold slope and large "on" current. Their 3D quantum transport study using non-equilibrium Green's…

介观与纳米尺度物理 · 物理学 2016-10-04 Jun Z. Huang , Lining Zhang , Pengyu Long , Michael Povolotskyi , Gerhard Klimeck

Tunneling field-effect transistors (TFETs) based on 2D materials are promising steep sub-threshold swing (SS) devices due to their tight gate control. There are two major methods to create the tunnel junction in these 2D TFETs: electrical…

介观与纳米尺度物理 · 物理学 2016-08-30 Hesameddin Ilatikhameneh , Gerhard Klimeck , Joerg Appenzeller , Rajib Rahman

We provide a detailed study of the interface Trap Assisted Tunneling (TAT) mechanism in tunnel field effect transistors to show how it contributes a major leakage current path before the Band To Band Tunneling (BTBT) is initiated. With a…

介观与纳米尺度物理 · 物理学 2016-11-23 Redwan N. Sajjad , Winston Chern , Judy L. Hoyt , Dimitri A. Antoniadis

Tunnel Field Effect Transistors (TFET) have extremely low leakage current, exhibit excellent subthreshold swing and are less susceptible to short channel effects. However, TFETs do face certain special challenges, particularly with respect…

介观与纳米尺度物理 · 物理学 2010-10-19 Sneh Saurabh , M. Jagadesh Kumar

A vertical partial gate carbon nanotube (CNT) field-effect transistor (FET), which is amenable to the vertical CNT growth process and offers the potential for a parallel CNT array channel, is simulated using a self-consistent atomistic…

介观与纳米尺度物理 · 物理学 2015-05-13 Youngki Yoon , James Fodor , Jing Guo

In this work, we simulate the expected device performance and the scaling perspectives of Carbon nanotube Field Effect Transistors (CNT-FETs), with doped source and drain extensions. The simulations are based on the self-consistent solution…

介观与纳米尺度物理 · 物理学 2009-11-11 G. Fiori , G. Iannaccone , G. Klimeck

We present the detailed treatment of dissipative quantum transport in carbon nanotube field-effect transistors (CNTFETs) using the non-equilibrium Green's function formalism. The effect of phonon scattering on the device characteristics of…

介观与纳米尺度物理 · 物理学 2009-11-13 Siyuranga O. Koswatta , Sayed Hasan , Mark S. Lundstrom , M. P. Anantram , Dmitri E. Nikonov

In the present work, we have investigated the performances of L shaped Vertical broken bandgapheterostructureInSb InAsn-channel tunnel field effect transistors TFETs of 4 nm thin channel structures with the gate lengths of 20nm. We have…

材料科学 · 物理学 2014-08-13 Bhupesh Bishnoi , Bahniman Ghosh

In this work, an analytic model is proposed which provides in a continuous manner the current-voltage characteristic (I-V) of high performance tunneling field-effect transistors (TFETs) based on direct bandgap semiconductors. The model…

介观与纳米尺度物理 · 物理学 2016-08-24 Hesameddin Ilatikhameneh , Ramon B. Salazar , Gerhard Klimeck , Rajib Rahman , Joerg Appenzeller

Recent experiments shown that graphene epitaxially grown on Silicon Carbide (SiC) can exhibit a energy gap of 0.26 eV, making it a promising material for electronics. With an accurate model, we explore the design parameter space for a fully…

介观与纳米尺度物理 · 物理学 2010-07-02 Paolo Michetti , Martina Cheli , Giuseppe Iannaccone

In this work, we demonstrate a silicon nanocrystal Field Effect Transistor (ncFET). Its operation is similar to that of a Tunnelling Field Effect Transistor (TFET) with two barriers in series. The tunnelling barriers are fabricated in very…

介观与纳米尺度物理 · 物理学 2014-05-20 Patrick Harvey-Collard , Dominique Drouin , Michel Pioro-Ladrière

Compact and energy-efficient Synapse and Neurons are essential to realize the full potential of neuromorphic computing. In addition, a low variability is indeed needed for neurons in Deep neural networks for higher accuracy. Further,…

The continuous down-scaling of transistors has been the key to the successful development of current information technology. However, with Moore's law reaching its limits, the development of alternative transistor architectures is urgently…

A tunneling field effect transistor based on armchair graphene nanoribbons is studied using ballistic quantum transport simulation based on 3D real space nonequilibrium Green's function formalism. By introducing a pocket doping region near…

介观与纳米尺度物理 · 物理学 2013-12-13 Fei Liu , Yahua Peng , Xiaoyan Liu , Jinfeng Kang , Yi Wang

The dielectric engineered tunnel field-effect transistor (DE-TFET) as a high performance steep transistor is proposed. In this device, a combination of high-k and low-k dielectrics results in a high electric field at the tunnel junction. As…

介观与纳米尺度物理 · 物理学 2015-10-23 Hesameddin Ilatikhameneh , Tarek A. Ameen , Gerhard Klimeck , Joerg Appenzeller , Rajib Rahman

Band-to-band tunnelling field-effect transistors (TFETs) have long been considered as promising candidates for future low-power logic applications. However, fabricated TFETs rarely reach sub-60 mV/dec sub-threshold swings (SS) at room…

介观与纳米尺度物理 · 物理学 2024-11-01 Chen Hao Xia , Leonard Deuschle , Jiang Cao , Alexander Maeder , Mathieu Luisier

In this paper, we have presented the impact of the gate leakage through thin gate dielectrics (SiO2 and high-\k{appa} gate dielectric) on the subthreshold characteristics of the tunnel field effect transistors (TFET) for a low operating…

介观与纳米尺度物理 · 物理学 2014-06-06 Poornendu Chaturvedi , M. Jagadesh Kumar

A heterojunction tunneling field effect transistor based on armchair graphene nanoribbons is proposed and studied using ballistic quantum transport simulation based on 3D real space nonequilibrium Green's function formalism. By using low…

介观与纳米尺度物理 · 物理学 2013-12-13 Fei Liu , Xiaoyan Liu , Jinfeng Kang , Yi Wang