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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…

Mesoscale and Nanoscale Physics · Physics 2016-08-24 Hesameddin Ilatikhameneh , Ramon B. Salazar , Gerhard Klimeck , Rajib Rahman , Joerg Appenzeller

In this work, we investigate the transport phenomena in compound semiconductor material based buried channel Quantum Well MOSFET with a view to developing a simple and effective model for the device current. Device simulation has been…

Mesoscale and Nanoscale Physics · Physics 2020-06-14 Ehsanur Rahman , Abir Shadman , Sudipta Romen Biswas , Kanak Datta , Quazi D. M. Khosru

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…

Materials Science · Physics 2018-11-14 Sheikh Z. Ahmed , Yaohua Tan , Daniel S. Truesdell , Benton H. Calhoun , Avik W. Ghosh

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…

Mesoscale and Nanoscale Physics · Physics 2016-10-04 Jun Z. Huang , Lining Zhang , Pengyu Long , Michael Povolotskyi , Gerhard Klimeck

Tunneling field-effect transistors (TFETs) have gained a great deal of recent interest due to their potential to reduce power dissipation in integrated circuits. One major challenge for TFETs so far has been achieving high drive currents,…

Mesoscale and Nanoscale Physics · Physics 2010-11-25 Siyuranga O. Koswatta , Steven J. Koester , Wilfried Haensch

Topological insulator field-effect transistors (TIFETs) built on 2-D quantum spin Hall insulators are being considered as advanced logic transistors due to their potentially superior performance originating from the dissipationless edge…

Mesoscale and Nanoscale Physics · Physics 2026-03-17 Yungyeong Park , Yosep Park , Hyeonseok Choi , Subeen Lim , Dongwook Kim , Yeonghun Lee

In this work, the performance of Tunnel Field-Effect Transistors (TFETs) based on two-dimensional Transition Metal Dichalcogenide (TMD) materials is investigated by atomistic quantum transport simulations. One of the major challenges of…

In recent past extensive device simulation work has already been done on TFETs. Various ways have been suggested to model TFETs. In our paper we look at one such particular way to model these devices. The Non equilibrium green's formalism…

Mesoscale and Nanoscale Physics · Physics 2011-05-27 Rahul Mishra , Bahniman Ghosh

Vertical tunneling field-effect-transistor (FET) based on graphene heterojunctions with layers of hBN is simulated by self-consistent quantum transport simulations. It is found that the asymmetric p-type and n-type conduction is due to work…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 S. Bala Kumar , Gyungseon Seol , Jing Guo

In this paper we have developed a two dimensional (2D) analytical model for surface potential and drain current for a long channel Dual Material Gate (DMG) Silicon-on-Insulator (SOI) Tunneling Field Effect Transistor (TFET). This model…

Mesoscale and Nanoscale Physics · Physics 2014-05-27 Rajat Vishnoi , M. Jagadesh Kumar

We present a compact model for Tunnel Field Effect Transistors (TFET), that captures sev- eral non-idealities such as the Trap Assisted Tunneling (TAT) originating from interface traps (Dit), along with Verilog-A implementation. We show…

Mesoscale and Nanoscale Physics · Physics 2018-10-17 Redwan N. Sajjad , Ujwal Radhakrishna , Dimitri A. Antoniadis

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…

Materials Science · Physics 2014-08-13 Bhupesh Bishnoi , Bahniman Ghosh

In this work, the transport of tunnel field-effect transistor (TFET) based on vertically stacked hereto-structures from 2D transition metal dichalcogenide (TMD) materials is investigated by atomistic quantum transport simulations. WTe2-MoS2…

Materials Science · Physics 2017-09-13 Fan Chen , Hesameddin Ilatikhameneh , Yaohua Tan , Daniel Valencia , Gerhard Klimeck , Rajib Rahman

This paper projects the enhanced drive current of a n-type electrostatically doped (ED) tunnel field-effect transistor (ED-TFET) based on heterojunction and band-gap engineering via TCAD 2-D device simulations. The homojunction ED-TFET…

Mesoscale and Nanoscale Physics · Physics 2015-12-22 Kanchan Cecil , Jawar Singh

In-plane heterojunction tunnel field effect transistors based on monolayer transition metal dichalcogenides are studied by means of self-consistent non-equilibrium Green's functions simulations and an atomistic tight-binding Hamiltonian. We…

Mesoscale and Nanoscale Physics · Physics 2018-11-14 Jean Choukroun , Marco Pala , Shiang Fang , Efthimios Kaxiras , Philippe Dollfus

Thickness engineered tunneling field-effect transistors (TE-TFET) as a high performance ultra-scaled steep transistor is proposed. This device exploits a specific property of 2D materials: layer thickness dependent energy bandgap (Eg).…

Mesoscale and Nanoscale Physics · Physics 2017-03-08 Fan W. Chen , Hesameddin Ilatikhameneh , Tarek A. Ameen , Gerhard Klimeck , Rajib Rahman

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…

Mesoscale and Nanoscale Physics · Physics 2017-09-22 Jun Li , Yifan Nie , Kyeongjae Cho , Randall M. Feenstra

In this study, we report the progress made towards the definition of a modular compact modeling technology for graphene field-effect transistors (GFET) that enables the electrical analysis of arbitrary GFET-based integrated circuits. A set…

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…

Mesoscale and Nanoscale Physics · Physics 2013-12-13 Fei Liu , Xiaoyan Liu , Jinfeng Kang , Yi Wang

We present an atomistic quantum transport simulation framework based on the Non-Equilibrium Green's Function (NEGF) formalism to model impact ionization in semiconductor avalanche devices, with direct relevance to near-term quantum…

Quantum Physics · Physics 2026-05-05 Colin Burdine , Nischal Binod Gautam , Enrique P. Blair
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