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We describe a robust technique for the fabrication of high performance vertically scaled n-doped field-effect transistors from large band gap carbon nanotubes. These devices have a tunable threshold voltage in the technologically relevant…

Materials Science · Physics 2009-11-10 M. Radosavljevic , J. Appenzeller , Ph. Avouris , J. Knoch

In this work, we present a class of new designs for reversible binary and BCD adder circuits. The proposed designs are primarily optimized for the number of ancilla inputs and the number of garbage outputs and are designed for possible best…

Quantum Physics · Physics 2017-12-08 Himanshu Thapliyal , Nagarajan Ranganathan

Tunneling field-effect transistors (FETs) have been intensely explored recently due to its potential to address power concerns in nanoelectronics. The recently discovered graphene nanoribbon (GNR) is ideal for tunneling FETs due to its…

Materials Science · Physics 2009-09-30 Pei Zhao , Jyotsna Chauhan , Jing Guo

We present first-principles calculations of phase coherent electron transport in a carbon nanotube (CNT) with realistic contacts. We focus on the zero-bias response of open metallic CNT's considering two archetypal contact geometries (end…

Materials Science · Physics 2009-11-07 J. J. Palacios , A. J. Perez-Jimenez , E. Louis , E. SanFabian , J. A. Verges

We show that the performance of pentacene transistors can be significantly improved by maximizing the interfacial area at single walled carbon nanotube (SWCNT)/pentacene. The interfacial areas are varied by anchoring short SWCNTs of…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 Narae Kang , Biddut K. Sarker , Saiful I. Khondaker

We have performed parameter-free calculations of electron transport across a carbon molecular junction consisting of a C$_{60}$ molecule sandwiched between two semi-infinite metallic carbon nanotubes. It is shown that the Landauer…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 R. Gutierrez , G. Fagas , G. Cuniberti , F. Grossmann , R. Schmidt , K. Richter

Single electron transistors (SETs) made from single wall carbon nanotubes (SWCNTs) are promising for quantum electronic devices operating with ultra-low power consumption and allow fundamental studies of electron transport. We report on…

Mesoscale and Nanoscale Physics · Physics 2017-05-09 Nan Ai , Onejae Sul , Milan Begliarbekov , Qiang Song , Kitu Kumar , Daniel S. Choi , Eui-Hyeok Yang , Stefan Strauf

As silicon transistors scale toward future technology nodes, three-dimensional architectures -- including gate-all-around (GAA) nanoribbon and complementary field-effect transistors (CFETs) -- require channel widths in the tens of…

Nanomagnets with biaxial magnetocrystalline anisotropy have four stable magnetization orientations that can encode 4-state logic bits (00), (01), (11) and (10). Recently, a 4-state NOR gate derived from three such nanomagnets, interacting…

Mesoscale and Nanoscale Physics · Physics 2016-09-29 Noel D'Souza , Jayasimha Atulasimha , Supriyo Bandyopadhyay

Transfer printing methods are used to pattern and assemble monolithic carbon nanotube (CNT) thin-film transistors on large-area transparent, flexible substrates. Airbrushed CNT thin-films with sheet resistance 1kOhmsquare^{-1} at 80%…

Materials Science · Physics 2015-03-17 V. K. Sangwan , A. Southard , T. L. Moore , V. W. Ballarotto , D. R. Hines , M. S. Fuhrer , E. D. Williams

High performance nanocomposites require well dispersion and high alignment of the nanometer-sized components, at a high mass or volume fraction as well. However, the road towards such composite structure is severely hindered due to the easy…

Materials Science · Physics 2015-06-24 Yue Han , Xiaohua Zhang , Xueping Yu , Jingna Zhao , Shan Li , Feng Liu , Peng Gao , Yongyi Zhang , Tong Zhao , Qingwen Li

As metal-oxide-semiconductor field-effect transistors (MOSFET) channel lengths (Lg) are scaled to lengths shorter than Lg<8 nm source-drain tunneling starts to become a major performance limiting factor. In this scenario a heavier transport…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Saumitra Mehrotra , SungGeun Kim , Tillmann Kubis , Michael Povolotskyi , Mark Lundstrom , Gerhard Klimeck

Thermal management has become a promising field in recent years due to the limitation of energy resources and the global warming. An important topic in improving the efficiency of thermal energy utilization is how to control the flows of…

Applied Physics · Physics 2020-12-30 Fangqi Chen , Xiaojie Liu , Yanpei Tian , Duanyang Wang , Yi Zheng

Calculations of quantum transport in a carbon nanotube transistor show that such a device offers unique functionality. It can operate as a ballistic field-effect transistor, with excellent characteristics even when scaled to 10 nm…

Condensed Matter · Physics 2009-11-07 F. Leonard , J. Tersoff

We develop in this paper a theoretical framework that applies to the intermediate regime between the Coulomb blockade and the Luttinger liquid behavior in multi-walled carbon nanotubes. Our main goal is to confront the experimental…

Strongly Correlated Electrons · Physics 2009-11-11 S. Bellucci , J. Gonzalez , P. Onorato , E. Perfetto

Atomistic simulations of heat transport in complex materials are costly and hard to converge. This has led to the development of several noise-reduction techniques applicable to equilibrium molecular-dynamics (MD) simulations. We analyze…

Materials Science · Physics 2025-11-19 Sandro Wieser , YuJie Cen , Georg K. H. Madsen , Jesús Carrete

Carbon-based materials like nanotubes and graphene are heavily investigated as future CMOS-like devices and in interconnect applications. While much of the interest has been devoted to the device aspects in competition to conventional CMOS…

Materials Science · Physics 2010-12-23 Franz Kreupl

Recently synthesized Porous 12-Atom-Wide Armchair Graphene Nanoribbons Nano Lett. 2024, 24, 10718-10723 exhibit tunable properties through periodic porosity, enabling precise control over their electronic, optical, thermal, and mechanical…

This study presents the implementation of an all-optical binary logic half adder by employing triple core photonic crystal fiber (TPCF). The noteworthy feature of the present investigation is that an identical set of TPCF schemes, which…

Optics · Physics 2021-06-30 Uthayakumar T , Vasantha Jayakantha Raja R

Spin transfer torque nano-oscillators are potential candidates for replacing the traditional inductor based voltage controlled oscillators in modern communication devices. Typical oscillator designs are based on trilayer magnetic tunnel…

Mesoscale and Nanoscale Physics · Physics 2017-12-20 Abhishek Sharma , Ashwin A Tulapurkar , Bhaskaran Muralidharan
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