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The availability of transistors capable of operating at low supply voltage is essential to improve the key performance metric of computing circuits, i.e., the number of operations per unit energy. In this paper, we propose a new device…

Mesoscale and Nanoscale Physics · Physics 2020-10-30 Demetrio Logoteta , Jiang Cao , Marco Pala , Philippe Dollfus , Youseung Lee , Giuseppe Iannaccone

An increase in power consumption necessitates a low-power circuit technology to extend Moore's law. Low-power transistors, such as tunnel field-effect transistors (TFETs), negative-capacitance field-effect transistors (NC-FETs), and…

Black phosphorus (BP) tunneling transistors (TFETs) using heterojunction (He) are investigated by atomistic quantum transport simulations. It is observed that edge states have a great impact on transport characteristics of BP He-TFETs,…

Mesoscale and Nanoscale Physics · Physics 2019-09-04 Fei Liu , Jian Wang , Hong Guo

The design of a 1 micrometer gate length depletion-mode InSb quantum-well field-effect transistor (QWFET) with a 10 nm-thick Al2O3 gate dielectric has been optimized using a quantum corrected self-consistent Schrodinger-Poisson (QCSP) and…

Mesoscale and Nanoscale Physics · Physics 2016-06-28 R. Islam , M. M. Uddin , M. Mofazzal Hossain , M. B. Santos , M. A. Matin , Y. Hirayama

Gate-All-Around Field-Effect Transistors (GAAFETs), now entering high-volume production as successors to fin field-effect transistor technology, are enabling continued scaling and enhanced performance in advanced semiconductor nodes.…

Other Condensed Matter · Physics 2026-03-24 Juan P. Mendez , Coleman Cariker , Michael Titze , Alex A. Belianinov , Denis Mamaluy

We have addressed the microscopic transport mechanism at the switching or on-off transition in transition metal dichalcogenide (TMDC) field-effect transistors (FET), which has been a controversial topic in TMDC electronics, especially at…

Mesoscale and Nanoscale Physics · Physics 2016-03-23 Tathagata Paul , Subhamoy Ghatak , Arindam Ghosh

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…

Mesoscale and Nanoscale Physics · Physics 2024-11-01 Chen Hao Xia , Leonard Deuschle , Jiang Cao , Alexander Maeder , Mathieu Luisier

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

Graphene, due to its unique electronic structure favoring high carrier mobility, is considered a promising material for use in high-speed electronic devices in the post-silicon electronic era. For this reason, experimental research on…

Mesoscale and Nanoscale Physics · Physics 2020-09-17 Giovanni Spinelli , Patrizia Lamberti , Vincenzo Tucci , Francisco Pasadas , David Jiménez

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…

The development of two-dimensional (2D) transition metal dichalcogenides (TMDs) based transistors has been constrained by high contact resistance and inadequate current delivery, primarily stemming from metal-induced gap states and Fermi…

Mesoscale and Nanoscale Physics · Physics 2025-02-21 Yun Li , Tinghe Yun , Bohan Wei , Haoran Mu , Luojun Du , Nan Cui , Guangyu Zhang , Shenghuang Lin

We report on the fabrication and characterization of single crystal field-effect transistors (FETs) based on diphenylbenzo diselenophene (DPh-BDSe). These organic field-effect transistors (OFETs) function as p-channel accumulation-mode…

Materials Science · Physics 2009-11-10 R. Zeis , Ch. Kloc , K. Takimiya , Y. Kunugi , Y. Konda , N. Niihara , T. Otsubo

In this paper, we report a novel chemical doping technique to reduce the contact resistance (Rc) of transition metal dichalcogenides (TMDs) - eliminating two major roadblocks (namely, doping and high Rc) towards demonstration of…

In recent years, a lot of scientific research effort has been put forth for the investigation of Transition Metal Dichalcogenides (TMDC) and other Two Dimensional (2D) materials like Graphene, Boron Nitride. Theoretical investigation on the…

Computational Physics · Physics 2018-02-27 Kanak Datta , Quazi D. M. Khosru

In this paper we study the device physics of a technique for realizing an n-p-n bipolar transistor action in the source side of a junctionless nanowire tunneling FET (BJN-TFET). In the on-state, tunneling of electrons from valence band of…

Mesoscale and Nanoscale Physics · Physics 2016-09-28 Morteza Rahimiana , Morteza Fathipour

We develop theoretical arguments that demonstrate the possibility of metallic field-effect transistors (METFET's) in one-dimensional systems and particularly in armchair carbon nanotubes. A very inhomogeneous electric field, such as the…

Materials Science · Physics 2010-01-12 Slava V. Rotkin , Karl Hess

The use of SrTiO$_3$ dielectrics as high-permittivity insulator in organic thin film field effect transistors (FET) is evaluated. Field-effect transistors with sputtered SrTiO$_3$ and copper-phthalocyanine (CuPc) as semiconducting layer…

Materials Science · Physics 2015-05-27 F. Roth , M. Huth

Layered semiconductors show promise as channel materials for field-effect transistors (FETs). Usually, such devices incorporate solid back or top gate dielectrics. Here, we explore de-ionized (DI) water as a solution top gate for…

Mesoscale and Nanoscale Physics · Physics 2017-06-01 Yuan Huang , Eli Sutter , Peter Sutter

We report a new class of large-gap quantum spin Hall insulators in two-dimensional transition metal dichalcogenides, namely, MX$_2$ with M=(Mo, W) and X=(S, Se, and Te), whose topological electronic properties are highly tunable by external…

Mesoscale and Nanoscale Physics · Physics 2014-12-16 Xiaofeng Qian , Junwei Liu , Liang Fu , Ju Li

In this paper, we demonstrate by simulation the feasibility of electrostatically doped and therefore reconfigurable planar field-effect-transistor (FET) structure which is based on our already fabricated and published Si-nanowire (SiNW)…

Mesoscale and Nanoscale Physics · Physics 2014-04-11 Tillmann Krauss , Frank Wessely , Udo Schwalke
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