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Back-end-of-line (BEOL) logic integration is emerging as a complementary scaling path to supplement front-end-of-line (FEOL) Silicon. Among various options for BEOL logic, Carbon Nanotube Field-Effect Transistors (CNFETs) have been…

Emerging Technologies · Computer Science 2025-02-17 Andrew Yu , Tathagata Srimani , Max Shulaker

We perform ab initio calculations of charged graphene and single-wall carbon nanotubes (CNTs). A wealth of electromechanical behaviors is obtained: (1) Both nanotubes and graphene expand upon electron injection. (2) Upon hole injection,…

Materials Science · Physics 2009-11-07 M. Verissimo-Alves , Belita Koiller , H. Chacham , R. B. Capaz

The band-to-band tunneling transistors have some performance advantages over the conventional MOSFETs due to the <60mV/dec sub-threshold slope. In this paper, carbon nanotubes are used as a model channel material to address issues that we…

Mesoscale and Nanoscale Physics · Physics 2010-01-29 Yunfei Gao , Siyuranga O. Koswatta , Dmitri E. Nikonov , Mark S. Lundstrom

In this work, using 3D device simulation, we perform an extensive gate to source/drain underlap optimization for the recently proposed hybrid transistor, HFinFET, to show that the underlap lengths can be suitably tuned to improve the on-off…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Kausik Majumdar , Rajaram S. Konjady , Raj Tejas S. , Navakanta Bhat

Single-walled carbon nanotubes are promising nanoelectronic materials but face long-standing challenges including production of pure semiconducting SWNTs and integration into ordered structures. Here, highly pure semiconducting…

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

Floating gate transistor is the basic building block of non-volatile flash memory, which is one of the most widely used memory gadgets in modern micro and nano electronic applications. Recently there has been a surge of interest to…

Mesoscale and Nanoscale Physics · Physics 2015-08-12 Nahid M. Hossain , Masud H. Chowdhury

In this work, we demonstrate a silicon nanocrystal Field Effect Transistor (ncFET). Its operation is similar to that of a Tunnelling Field Effect Transistor (TFET) with two barriers in series. The tunnelling barriers are fabricated in very…

Mesoscale and Nanoscale Physics · Physics 2014-05-20 Patrick Harvey-Collard , Dominique Drouin , Michel Pioro-Ladrière

We propose a new drive mechanism for carbon nanotube (CNT) motors, based upon the torque generated by a flux of electrons passing through a chiral nanotube. The structure of interest comprises a double-walled CNT, formed from, for example,…

Materials Science · Physics 2009-11-13 S W D Bailey , I Amanatidis , C J Lambert

We describe a hybrid quantum system composed of a micrometer-size carbon nanotube (CNT) longitudinally coupled to a flux qubit. We demonstrate the usefulness of this device for generating high-fidelity nonclassical states of the CNT via…

Quantum Physics · Physics 2017-05-16 Xin Wang , Adam Miranowicz , Hong-Rong Li , Franco Nori

After more than 30 years of validation of Moore's law, the CMOS technology has already entered the nanoscale (sub-100nm) regime and faces strong limitations. The nanowire transistor is one candidate which has the potential to overcome the…

Mesoscale and Nanoscale Physics · Physics 2010-08-19 Vijay Sai Patnaik , Ankit Gheedia , M. Jagadesh Kumar

Single electron transistors (SETs) are fabricated by placing single walled carbon nanotubes (SWNTs) on a 100 nm wide local Al/Al2O3 bottom gate and then contacting with Pd electrodes. Coulomb oscillations up to 125 K were observed and…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Paul Stokes , Saiful I. Khondaker

Carbon nanotubes (CNT) have been recently proposed as stabilizers against grain growth that can happen even at low temperature inputs in nano-crystalline and ultrafine-grained materials obtained by severe plastic deformation. In this study,…

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 consider theoretical models of the nanolaser and logic gates on carbon nanotubes (CNTs). In our work, it is shown at pumping the nanoresonator of the nanolaser on CNT by optical radiation using a quantum dot as nano light emitted diode…

Optics · Physics 2025-11-18 I. V. Dzedolik , S. V. Tomilin

The apex region of a capped (5,5) carbon nanotube (CNT) has been modelled with the DFT package ONETEP, using boundary conditions provided by a classical calculation with a conducting surface in place of the CNT. Results from the DFT…

Applied Physics · Physics 2019-01-17 C. J. Edgcombe , S. M. Masur , E. B. Linscott , J. A. J. Whaley-Baldwin , C. H. W. Barnes

We exploit the near field enhancement of nano-antennas to investigate the Raman spectra of otherwise not optically detectable carbon nanotubes (CNTs). We demonstrate that a top-down fabrication approach is particularly promising when…

Mesoscale and Nanoscale Physics · Physics 2015-07-01 Nicola Paradiso , Fatemeh Yaghobian , Christoph Lange , Tobias Korn , Christian Schüller , Rupert Huber , Christoph Strunk

Corrosion is an inevitable phenomenon that is inherent in metals and even though there has been significant research on this subject, no ideal protection has been discovered to fully prevent corrosion. However, methods such as using…

Applied Physics · Physics 2018-12-11 Farhad Daneshvar

Carbon nanotubes (CNT) hold enormous technological promise. It can only be harnessed if one controls in a practical way the CNT chirality, the feature of the tubular carbon topology that governs all the CNT properties---electronic, optical,…

Materials Science · Physics 2014-09-18 Vasilii I. Artyukhov , Evgeni S. Penev , Boris I. Yakobson

Graphene/carbon-nanotube (CNT) hybrid material can be useful in energy storage and nanoelectronic technologies. Here we address the CNT-oscillator encapsulated in a graphene-nanoribbon (GNR) trench as a novel design, and investigate its…

Mesoscale and Nanoscale Physics · Physics 2016-09-21 Eunae Lee , Jeong Won Kang , Ki-Sub Kim , Oh-Kuen Kwon