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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

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…

介观与纳米尺度物理 · 物理学 2015-06-24 Ali Javey , Jing Guo , Damon B. Farmer , Qian Wang , Dunwei Wang , Roy G. Gordon , Mark Lundstrom , Hongjie Dai

Three-terminal devices with conduction channels formed by quasi-metallic carbon nanotubes (CNT) are shown to operate as nanotube-based field-effect transistors under strong magnetic fields. The off-state conductance of the devices varies…

We present a data-calibrated compact model of carbon nanotube (CNT) field-effect transistors (CNFETs) including contact resistance, direct source-to-drain and band-to-band tunneling currents. The model captures the effects of dimensional…

介观与纳米尺度物理 · 物理学 2015-10-28 Chi-Shuen Lee , Eric Pop , Aaron D. Franklin , Wilfried Haensch , H. -S. Philip Wong

We investigate electronic transport properties of Schottky-barrier field-effect transistors (FET) based on double-walled carbon nanotubes (DWNT) with a semiconducting outer shell and a metallic inner one. These kind of DWNT-FET show…

介观与纳米尺度物理 · 物理学 2007-07-26 Shidong Wang , Milena Grifoni

High performance p- and n-type single-walled carbon nanotube (SWNT) field-effect transistors (FETs) are obtained by using high and low work function metals, Pd and Al as source/drain (S/D) electrodes respectively. Ohmic contacts made to…

介观与纳米尺度物理 · 物理学 2007-05-23 Ali Javey , Qian Wang , Woong Kim , Hongjie Dai

Nanotransistors typically operate in far-from-equilibrium (FFE) conditions, that cannot be described neither by drift-diffusion, nor by purely ballistic models. In carbonbased nanotransistors, source and drain contacts are often…

介观与纳米尺度物理 · 物理学 2010-07-01 Paolo Michetti , Giuseppe Iannaccone

The use of carbon nanotube (CNT) field-effect transistors (FETs) in microwave circuit design requires an appropriate, immediate and efficient description of their performance. This work describes a technique to extract the parameters of an…

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

Short channel (~80 nm) n-type single-walled carbon nanotube (SWNT) field-effect transistors (FETs) with potassium (K) doped source and drain regions and high-k gate dielectrics (ALD HfO2) are obtained. For nanotubes with diameter ~ 1.6 nm…

材料科学 · 物理学 2015-06-24 Ali Javey , Ryan Tu , Damon Farmer , Jing Guo , Roy Gordon , 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,…

材料科学 · 物理学 2007-12-18 Yu-Ming Lin , Joerg Appenzeller , Joachim Knoch , Phaedon Avouris

Carbon Nanotube (CNT) appears as a promising candidate to shrink field-effect transistors (FET) to the nanometer scale. Extensive experimental works have been performed recently to develop the appropriate technology and to explore DC…

其他凝聚态物理 · 物理学 2009-11-13 H. Cazin d'Honincthun , S. Galdin-Retailleau , A. Bournel , P. Dollfus , J. -P. Bourgoin

We predict shot noise enhancement in defect-free carbon nanotube field-effect transistors through a numerical investigation based on the self-consistent solution of the Poisson and Schrodinger equations within the non-equilibrium Green…

介观与纳米尺度物理 · 物理学 2015-05-18 Alessandro Betti , Gianluca Fiori , Giuseppe Iannaccone

Understanding of the electrical contact properties of semiconductor nanowire (NW) field effect transistors (FETs) plays a crucial role in employing semiconducting NWs as building blocks for future nanoelectronic devices and in the study of…

介观与纳米尺度物理 · 物理学 2016-05-30 Dingxun Fan , N Kang , Sepideh Gorji Ghalamestani , Kimberly A Dick , H Q Xu

A low complexity computational model of the current-voltage characteristics for graphene nano-ribbon (GNR) field effect transistors (FET), able to simulate a hundred of points in few seconds using a PC, is presented. For quantum capacitance…

介观与纳米尺度物理 · 物理学 2008-07-15 David Jimenez

We presents a data-calibrated compact model of carbon nanotube (CNT) field-effect transistors (CNFETs) based on the virtual-source (VS) approach, describing the intrinsic current-voltage and charge-voltage characteristics. The features of…

介观与纳米尺度物理 · 物理学 2015-10-28 Chi-Shuen Lee , Eric Pop , Aaron D. Franklin , Wilfried Haensch , H. -S. Philip Wong

We present quantum simulations of carbon nanotube field-effect transistors (CNT-FETs) based on top-gated architectures and compare to electrical characterization on devices with 15 nm channel lengths. A non-equilibrium Green's function…

介观与纳米尺度物理 · 物理学 2021-10-27 Alfonso Sanchez-Soares , Thomas Kelly , Giorgos Fagas , James C. Greer , Edward Chen

We present self-consistent, non-equilibrium Green's function calculations of the characteristics of short channel carbon nanotube transistors, focusing on the regime of ballistic transport with ohmic contacts. We first establish that the…

其他凝聚态物理 · 物理学 2008-05-09 Francois Leonard , Derek A Stewart

We report on the influence of low gamma irradiation (10^4 Gy) on the noise properties of individual carbon nanotube (CNT) field-effect transistors (FETs) with different gate configurations and two different dielectric layers, SiO2 and…

We report density-functional theory (DFT), atomistic simulations of the non-equilibrium transport properties of carbon nanotube (CNT) field-effect transistors (FETs). Results have been obtained within a self-consistent approach based on the…

介观与纳米尺度物理 · 物理学 2007-05-23 L. Latessa , A. Pecchia , A. Di Carlo
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