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Most carbon nanotube field-effect transistors (CNTFETs) directly attach metal source/drain contacts to an intrinsic nanotube channel. When the gate oxide thickness is reduced, such transistors display strong ambipolar conduction, even when…

介观与纳米尺度物理 · 物理学 2007-05-23 Jing Guo , Ali Javey , Hongjie Dai , Supriyo Datta , Mark Lundstrom

Two key subjects stand out in the pursuit of semiconductor research: material quality and contact technology. The fledging field of atomically thin transition metal dichalcogenides (TMDCs) faces a number of challenges in both efforts. This…

In this paper we propose a modified structure of TFET incorporating ferroelectric oxide as the complementary gate dielectric operating in negative capacitance zone, called the Negative Capacitance Tunnel FET (NCTFET). The proposed device…

综合物理 · 物理学 2014-05-21 Nadim Chowdhury , S. M. Farhaduzzaman Azad , Quazi D. M. Khosru

We report on a new computational model to efficiently simulate carbon nanotubebased field effect transistors (CNT-FET). In the model, a central region is formed by a semiconducting nanotube that acts as the conducting channel, surrounded by…

介观与纳米尺度物理 · 物理学 2009-11-11 D. Jimenez , X. Cartoixa , E. Miranda , J. Sune , F. A. Chaves , S. Roche

Traditional transistors based on complementary metal-oxide-semiconductor (CMOS) and metal-oxide-semiconductor field-effect transistors (MOSFETs) are facing significant limitations as device scaling reaches the limits of Moore's Law. These…

应用物理 · 物理学 2024-09-30 Chloe Isabella Tsang , Haihui Pu , Junhong Chen

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…

介观与纳米尺度物理 · 物理学 2015-05-19 Sneh Saurabh , M. Jagadesh Kumar

To explore the potential of field-effect transistors (FETs) based on monolayers of the two-dimensional semiconducting channel(SC) for spintronics, the two most important issues are to ensure the formation of variable low resistive tunnel…

Spin-based memories are attractive for their non-volatility and high durability but provide modest resistance changes, whereas semiconductor logic transistors are capable of large resistance changes, but lack memory function with high…

Although monolayer black phosphorus (BP) or phosphorene has been successfully exfoliated and its optical properties have been explored, most of electrical performance of the devices is demonstrated on few-layer phosphorene and ultra-thin BP…

材料科学 · 物理学 2014-11-05 Yuchen Du , Han Liu , Yexin Deng , Peide D. Ye

We report the fabrication of low-leakage rectifying Pt and Au Schottky diodes and Au-gated metal-semiconductor field effect transistors (MESFETs) on n-type SrTiO3 thin films grown by hybrid molecular beam epitaxy. In agreement with previous…

材料科学 · 物理学 2015-06-22 Amit Verma , Santosh Raghavan , Susanne Stemmer , Debdeep Jena

The experimentally observed, ambipolar field-effect characteristics of Mott insulators are reproduced in the one-dimensional Hubbard model attached to a tight-binding model for source and drain electrodes. The formation of Schottky…

强关联电子 · 物理学 2007-10-19 Kenji Yonemitsu

We report the fabrication of back-gated field-effect transistors (FETs) using ultra-thin, mechanically exfoliated MoSe2 flakes. The MoSe2 FETs are n-type and possess a high gate modulation, with On/Off ratios larger than 106. The devices…

介观与纳米尺度物理 · 物理学 2013-01-04 S. Larentis , B. Fallahazad , E. Tutuc

Multi-bridge channel field effect transistor (MBCFET) provides several advantages over FinFET technology and is an attractive solution for sub-5 nm technology nodes. MBCFET is a natural choice for devices that use semiconducting layered…

介观与纳米尺度物理 · 物理学 2022-09-14 Hitesh S , Pushkar Dasika , Kenji Watanabe , Takashi Taniguchi , Kausik Majumdar

In this work, an analytical model to calculate the channel potential and current-voltage characteristics in a Symmetric tunneling Field-Effect-Transistor (SymFET) is presented. The current in a SymFET flows by tunneling from an n-type…

介观与纳米尺度物理 · 物理学 2013-01-07 Pei Zhao , Randall M. Feenstra , Gong Gu , Debdeep Jena

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…

介观与纳米尺度物理 · 物理学 2016-06-28 R. Islam , M. M. Uddin , M. Mofazzal Hossain , M. B. Santos , M. A. Matin , Y. Hirayama

We propose and theoretically analyze a novel metal-oxide-semiconductor field-effect-transistor (MOSFET) type of spin transistor (hereafter referred to as a spin MOSFET) consisting of a MOS gate structure and half-metallic-ferromagnet (HMF)…

材料科学 · 物理学 2009-11-10 S. Sugahara , M. Tanaka

Two-dimensional (2D) transition metal dichalcogenides (TMDs) such as molybdenum disulfide (MoS2) have been intensively investigated because of their exclusive physical properties for advanced electronics and optoelectronics. In the present…

A dual mode device behaving either as a field-effect transistor or a single electron transistor (SET) has been fabricated using silicon-on-insulator metal oxide semiconductor technology. Depending on the back gate polarisation, an electron…

介观与纳米尺度物理 · 物理学 2012-05-17 Benoît Roche , Benoit Voisin , Xavier Jehl , Romain Wacquez , Marc Sanquer , Maud Vinet , Veeresh Deshpande , Bernard Previtali

Schottky barriers are often formed at the semiconductor/metal contacts and affect the electrical behaviour of semiconductor devices. In particular, Schottky barriers have been playing a major role in the investigation of the electrical…

应用物理 · 物理学 2021-10-18 Alessandro Grillo , Antonio Di Bartolomeo

Non-reciprocal charge transport in supercurrent diodes (SDs) polarized growing interest in the last few years for its potential applications in superconducting electronics (SCE). So far, SD effects have been reported in complex hybrid…

介观与纳米尺度物理 · 物理学 2023-01-31 Federico Paolucci , Giorgio De Simoni , Francesco Giazotto