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A physics-based model for the surface potential and drain current for monolayer transition metal dichalcogenide (TMD) field-effect transistor (FET) is presented. Taking into account the 2D density-of-states of the atomic layer thick TMD and…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 David Jimenez

Two dimensional (2D) topological insulators (TIs) and topological superconductors (TSCs) have been intensively studied for recent years due to its great potential for dissipationless electron transportation and fault-tolerant quantum…

Materials Science · Physics 2020-07-28 Chenxiao Zhao , Jinfeng Jia

Two-dimensional (2D) layered materials-based field-effect transistors (FETs) are promising for ultimate scaled electron device applications because of the improved electrostatics to atomically thin body thickness. However, compared with the…

Applied Physics · Physics 2019-10-02 Nan Fang , Kosuke Nagashio

We investigate the design of steep-slope metal-oxide-semiconductor field-effect transistors (MOSFETs) exploiting monolayers of transition metal dihalides as channel materials. With respect to other previously proposed steep-slope…

Mesoscale and Nanoscale Physics · Physics 2021-06-24 Demetrio Logoteta , Jiang Cao , Marco Pala , Paolo Marconcini , Giuseppe Iannaccone

We demonstrate a mechanism for a dual layer, vertical field-effect transistor, in which nearly-depleting one layer will extend its wavefunction to overlap the other layer and increase tunnel current. We characterize this effect in a…

Two-dimensional (2D) layered semiconductors, with their ultimate atomic thickness, have shown promise to scale down transistors for modern integrated circuitry. However, the electrical contacts that connect these materials with external…

We demonstrate tunable solid state and flexible graphene field effect devices (FEDs) fabricated using a poly(methylmethacrylate) (PMMA) and lithium fluoride (LiF) composite dielectric. Increasing the concentration of LiF in the composite…

Mesoscale and Nanoscale Physics · Physics 2016-05-03 Arunandan Kumar , Priyanka Tyagi , Ritu Srivastava

Here we report the properties of field-effect transistors based on few layers of chemical vapor transport grown alpha- MoTe_2 crystals mechanically exfoliated onto SiO_2. We performed field-effect and Hall mobility measurements, as well as…

Full-band atomistic quantum transport simulations based on first principles are employed to assess the potential of band-to-band tunneling FETs (TFETs) with a 2-D channel material as future electronic circuit components. We demonstrate that…

Mesoscale and Nanoscale Physics · Physics 2020-12-09 Áron Szabó Cedric Klinkert , Davide Campi , Christian Stieger , Nicola Marzari , Mathieu Luisier

Using 2-D self-consistent ballistic quantum transport simulations, we investigate the short-channel behavior of graphene field-effect transistors and its impact on the device transconductance and subsequently the intrinsic cut-off frequency…

Mesoscale and Nanoscale Physics · Physics 2011-10-31 Kartik Ganapathi , Youngki Yoon , Sayeef Salahuddin

2D materials are expected to be favorable channel materials for field-effect transistor (FET) with extremely short channel length because of their superior immunity to short-channel effects (SCE). Graphene, which is the most famous 2D…

Mesoscale and Nanoscale Physics · Physics 2016-03-03 Toru Kanazawa , Tomohiro Amemiya , Atsushi Ishikawa , Vikrant Upadhyaya , Kenji Tsuruta , Takuo Tanaka , Yasuyuki Miyamoto

The electric field induced quantum phase transition from topological to conventional insulator has been proposed as the basis of a topological field effect transistor [1-4]. In this scheme an electric field can switch 'on' the ballistic…

In this article, we present a configurable field-effect transistor (FET), where not only polarity (n- and p-type), but the conduction mechanism of a FET can also be configured dynamically. As a result, we can have both types of devices,…

Mesoscale and Nanoscale Physics · Physics 2014-12-17 Chitrakant Sahu , Avinash Lahgere , Jawar Singh

The primary mechanism of operation of almost all transistors today relies on electric-field effect in a semiconducting channel to tune its conductivity from the conducting 'on'-state to a non-conducting 'off'-state. As transistors continue…

In a continuous search for the energy-efficient electronic switches, a great attention is focused on tunnel field-effect transistors (TFETs) demonstrating an abrupt dependence of the source-drain current on the gate voltage. Among all…

Mesoscale and Nanoscale Physics · Physics 2016-01-19 G. Alymov , V. Vyurkov , V. Ryzhii , D. Svintsov

The continuous miniaturisation of metal-oxide-semiconductor field-effect transistors (MOSFETs) from long- to short-channel architectures has advanced beyond the predictions of Moore's Law. Continued advances in semiconductor electronics,…

Systems and Control · Electrical Eng. & Systems 2025-10-30 Yusheng Xiong , Kaveh Delfanazari

The continued evolution of CMOS technology demands materials and architectures that emphasize low power consumption, particularly for computations involving large scale data processing and multivariable optimization. Ferroelectric materials…

Channel length scaling in graphene field effect transistors (GFETs) is key in the pursuit of higher performance in radio frequency electronics for both rigid and flexible substrates. Although two-dimensional (2D) materials provide a…

Mesoscale and Nanoscale Physics · Physics 2016-06-24 Pedro C. Feijoo , David Jiménez , Xavier Cartoixà

Phosphorene is a novel two-dimensional material that can be isolated through mechanical exfoliation from layered black phosphorus, but unlike graphene and silicene, monolayer phosphorene has a large band gap. It was thus unsuspected to…

Materials Science · Physics 2015-02-18 Qihang Liu , Xiuwen Zhang , L. B. Abdalla , A. Fazzio , Alex Zunger

Ferroelectric field-effect transistors integrated on 2D semiconducting platforms are extremely relevant for low power electronics. Here, we propose and demonstrate a novel phase-change ferroelectric field effect transistor (PCFE-FET) for…

Applied Physics · Physics 2024-11-05 Sooraj Sanjay , Jalaja M. A , Navakanta Bhat , Pavan Nukala
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