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We demonstrate an exotic doubled-channeled NT GAAFET (DC NT GAAFET) structure with Ion boost in comparison with NT GAAFET and NW GAAFET with the same footprint. Ion gains of 64.8% and 1.7 times have been obtained in DC NT GAAFET in compared…

Applied Physics · Physics 2023-07-06 Laixiang Qin , Chunlai Li , Yiqun Wei , Zhangwei Xu , Jin He , Yandong He , Yutao Yue

Field-effect transistors (FETs) with single gates are adversely affected by short channel effects such as drain-induced barrier lowering (DIBL) and increases in the magnitude of sub-threshold swing as the channel length is reduced.…

Materials Science · Physics 2026-04-22 Chankeun Yoon , Juhan Ahn , Yuchen Zhou , Jaydeep P. Kulkarni , Ananth Dodabalapur

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

In this letter we discuss how the short channel behavior in sub 100 nm channel range can be improved by inducing a step surface potential profile at the back gate of an asymmetrical double gate (DG) Silicon-On-Insulator (SOI)…

Mesoscale and Nanoscale Physics · Physics 2010-08-19 M. Jagadesh Kumar , G. V. Reddy

In a family of experiments carried on all-metallic supercurrent nano-transistors a surprising gating effect has been recently shown. These include the full suppression of the critical supercurrent, the increase of quasiparticle population,…

Mesoscale and Nanoscale Physics · Physics 2021-01-26 M. Rocci , G. De Simoni , C. Puglia , D. Degli Esposti , E. Strambini , V. Zannier , L. Sorba , F. Giazotto

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…

Mesoscale and Nanoscale Physics · Physics 2010-10-19 Sneh Saurabh , M. Jagadesh Kumar

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…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 G. Fiori , G. Iannaccone , G. Klimeck

Recent experiments have shown the possibility of tuning the transport properties of metallic nanosized superconductors through a gate voltage. These results renewed the longstanding debate on the interaction between electrostatic fields and…

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…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Youngki Yoon , James Fodor , Jing Guo

Gate-all-around (GAA) nanowire (NW) field-effect transistor (FET) is a promising device architecture due to its superior gate controllability than that of the conventional FinFET architecture. The significantly higher electron mobility of…

Materials Science · Physics 2023-10-18 Linqiang Xu , Lianqiang Xu , Qiuhui Li , Shibo Fang , Ying Li , Ying Guo , Aili Wang , Ruge Quhe , Yee Sin Ang , Jing Lu

Tunnel field effect transistor (TFET) devices are attractive as they show good scalability and have very low leakage current. However they suffer from low on-current and high threshold voltage. In order to employ the TFET for circuit…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 Sneh Saurabh , M. Jagadesh Kumar

We have performed numerical modeling of dual-gate ballistic n-MOSFET's with channel length of the order of 10 nm, including the effects of quantum tunneling along the channel and through the gate oxide. Our analysis includes a…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Y. Naveh , K. K. Likharev

An important consideration in miniaturizing transistors is maximizing the coupling between the gate and the semiconductor channel. A nanowire with a coaxial metal gate provides optimal gate-channel coupling, but has only been realized for…

Mesoscale and Nanoscale Physics · Physics 2012-01-19 Kristian Storm , Gustav Nylund , Lars Samuelson , Adam P. Micolich

Gate capacitances of back-gated nanowire field-effect transistors (NW-FETs) are calculated by means of finite element methods and the results are compared with analytical results of the ``metallic cylinder on an infinite metal plate…

Other Condensed Matter · Physics 2009-11-11 Olaf Wunnicke

With decreasing device dimensions, the performance of carbon nanotube field-effect transistors (CNFETs) is limited by high Off currents except at low drain voltages. We show that an asymmetric design improves the performance, reducing Off…

Condensed Matter · Physics 2009-11-10 S. Heinze , J. Tersoff , Ph. Avouris

Difficulties in obtaining high-performance p-type transistors and gate insulator charge-trapping effects present two major challenges for III-V complementary metal-oxide semiconductor (CMOS) electronics. We report a p-GaAs nanowire…

Mesoscale and Nanoscale Physics · Physics 2018-09-28 A. R. Ullah , F. Meyer , J. G. Gluschke , S. Naureen , P. Caroff , P. Krogstrup , J. Nygard , A. P. Micolich

Carbon nanotube field-effect transistors (CNT FETs) have been proposed as possible building blocks for future nano-electronics. But a challenge with CNT FETs is that they appear to randomly display varying amounts of hysteresis in their…

High performance enhancement mode semiconducting carbon nanotube field-effect transistors (CNTFETs) are obtained by combining ohmic metal-tube contacts, high dielectric constant HfO2 films as gate insulators, and electrostatically doped…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 Ali Javey , Jing Guo , Damon B. Farmer , Qian Wang , Dunwei Wang , Roy G. Gordon , Mark Lundstrom , Hongjie Dai

State-of-the-art carbon nanotube field-effect transistors (CNFETs) behave as Schottky barrier (SB)-modulated transistors. It is known that vertical scaling of the gate oxide significantly improves the performance of these devices. However,…

Materials Science · Physics 2007-12-18 Yu-Ming Lin , Joerg Appenzeller , Joachim Knoch , Phaedon Avouris

We use numerical simulations to analyze recent experimental measurements of short-channel carbon nanotube field-effect transistors with palladium contacts. We show that the gate strongly modulates the contact properties, an effect that is…

Mesoscale and Nanoscale Physics · Physics 2014-03-18 Aron W. Cummings , François Léonard
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