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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…

Mesoscale and Nanoscale Physics · Physics 2015-10-28 Chi-Shuen Lee , Eric Pop , Aaron D. Franklin , Wilfried Haensch , H. -S. Philip Wong

This paper investigates the use of carbon nanotube field effect transistors (CNFETs) for the design of ternary full adder cells. The proposed circuits have been designed based on the unique properties of CNFETs such as having desired…

Emerging Technologies · Computer Science 2017-01-03 Fazel Sharifi , Atiyeh Panahi , Mohammad Hossein Moaiyeri , Keivan Navi

Traditional silicon binary circuits continue to face challenges such as high leakage power dissipation and large area of interconnections. Multiple-Valued Logic (MVL) and nano devices are two feasible solutions to overcome these problems.…

Emerging Technologies · Computer Science 2018-06-21 Sepher Tabrizchi , Fazel Sharifi , Abdel-Hameed A. Badawy

Boltzmann tyranny poses a fundamental limit to lowering the energy dissipation of conventional MOS devices, a minimum increase of the gate voltage, i.e. 60 mV, is required for a 10-fold increase in drain-to-source current at 300 K. Negative…

Applied Physics · Physics 2018-04-30 Ali Saeidi , Farzan Jazaeri , Igor Stolichnov , Christian C. Enz , Adrian M. ionescu

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

Field Effect Transistors (FETs) are ubiquitous in electronics. As we scale FETs to ever smaller sizes, it becomes natural to ask how small a practical FET might be. We propose and analyze an atomically precise molecular FET (herein referred…

Emerging Technologies · Computer Science 2025-05-12 Ralph C. Merkle , Robert A. Freitas , Damian G. Allis

Atomistic density functional theory (DFT) calculations of the capacitance between a metallic cylindric gate and a carbon nanotube (CNT) are reported. Results stressing the predominant effect of quantum capacitance in limiting or even…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 L. Latessa , A. Pecchia , A. Di Carlo , P. Lugli

The MUX implementation of ternary half adders and full adders using predecessor and successor functions lead to the most efficient efficient implementation using the smallest transistor count. These designs are compared with the binary…

Hardware Architecture · Computer Science 2021-01-06 Daniel Etiemble

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

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…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 L. Latessa , A. Pecchia , A. Di Carlo

Carbon nanotube field-effect transistors (CNT FETs) are regarded as promising candidates for next-generation energy-efficient computing systems. While research has employed the lift-off process to demonstrate the performance of CNT FETs,…

Applied Physics · Physics 2024-11-18 Xilong Gao , Jia Si , Zhiyong Zhang

Junctionless Nanowire Field-Effect Transistors (JNFETs), where the channel region is uniformly doped without the need for source-channel and drain-channel junctions or lateral doping abruptness, are considered an attractive alternative to…

Emerging Technologies · Computer Science 2014-04-02 Mostafizur Rahman , Pritish Narayanan , Csaba Andras Moritz

We report strategies of achieving both high assembly yield of carbon nanotubes at selected position of the circuit via dielectrophoresis (DEP) and field effect transistor (FET) yield using semiconducting enriched single walled carbon…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 Muhammad R. Islam , Kristy J. Kormondy , Eliot Silbar , Saiful I. Khondaker

Carbon nanotube field-effect transistors (CNFET) emerge as a promising alternative to CMOS transistors for the much higher speed and energy efficiency, which makes the technology particularly suitable for building the energy-hungry last…

Hardware Architecture · Computer Science 2021-08-12 Dawen Xu , Zhuangyu Feng , Cheng Liu , Li Li , Ying Wang , Yuanqing Cheng , Huawei Li , Xiaowei Li

The designs integrating the promising carbon nanotube transistors (CNTFET) will have to take into account the constraints implied by the strong dispersion inherent to nanotube manufacturing. This paper proposes to characterize the main…

Materials Science · Physics 2007-08-13 P. Desgreys , J. Gomes Da Silva , D. Robert

New technologies such as Quantum-dot Cellular Automata (QCA), Single Electron Tunneling (SET), Tunneling Phase Logic (TPL) and all-spin logic (ASL) devices have been widely advocated in nanotechnology as a response to the physical limits…

Emerging Technologies · Computer Science 2016-11-16 Moein Sarvaghad-Moghaddam , Ali A. Orouji , Monireh Houshmand

A new majority and minority voted redundancy (MMR) scheme is proposed that can provide the same degree of fault tolerance as N-modular redundancy (NMR) but with fewer function units and a less sophisticated voting logic. Example NMR and MMR…

Hardware Architecture · Computer Science 2019-01-29 P Balasubramanian , D L Maskell , N E Mastorakis

We analyze the distributions of electric potential and field, polarization and charge, and the differential capacitance of a silicon metal-oxide-ferroelectric field effect transistor (MOSFET), in which a gate insulator consists of thin…

Applied Physics · Physics 2022-08-30 Eugene A. Eliseev , Anna N. Morozovska , Lesya P. Yurchenko , Maksym V. Strikha

Building smaller transistors with enhanced functionality is critical in extending the limits of Moores law and meeting the demands of the electronics industry. Here we demonstrate transistor operation in a suspended single carbon nanotube…

Mesoscale and Nanoscale Physics · Physics 2016-07-12 Robert McCoy , Fredrick Anderson , Eric L. Carter , Robinson L. Smith

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