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Spin-dependent coherent quantum transport through carbon nanotubes (CNT) is studied theoretically within a tight-binding model and the Green's function partitioning technique. End-contacted metal/nanotube/metal systems are modelled and next…

介观与纳米尺度物理 · 物理学 2009-11-11 S. Krompiewski

Single-walled carbon nanotubes (SWCNTs) in their pristine form have high thermal conductivity whose further improvement has attracted a lot of interest. Some theoretical studies have suggested that the thermal conductivity of a $(10,10)$…

材料科学 · 物理学 2020-02-11 Haikuan Dong , Zheyong Fan , Ping Qian , Tapio Ala-Nissila , Yanjing Su

We investigate the geometry, stability, electronic structure and optical properties of C24H12 coronenes encapsulated in a single-wall (19,0) carbon nanotube. By an adequate combination of advanced electronic-structure techniques, involving…

介观与纳米尺度物理 · 物理学 2012-08-02 Yannick J. Dappe , José I. Martínez

The one-dimensional confinement of quasiparticles in individual carbon nanotubes (CNTs) leads to extremely anisotropic electronic and optical properties. In a macroscopic ensemble of randomly oriented CNTs, this anisotropy disappears…

Making full usage of bipolar transport in single-wall carbon nanotube (SWCNT) transistors could permit the development of two-in-one quantum devices with ultra-short channels. We report on clean $\sim$10 to 100 nm long suspended SWCNT…

介观与纳米尺度物理 · 物理学 2017-06-07 A. C. McRae , V. Tayari , J. M. Porter , A. R. Champagne

Carbon nanotubes are of central importance for applications in nano-electronics thanks to their exceptional transport properties. They can be used as sensors, for example in biological applications, provided that they are functionalized to…

介观与纳米尺度物理 · 物理学 2020-04-14 Ghassen Jemaï , Jouda Khabthani , Guy Trambly de Laissardière , Didier Mayou

We performed studies of coherent electronic transport through a single walled carbon nanotube. In the calculations multiple scattering on the contacts and interference processes were taken into account. Conductance is a composition of…

材料科学 · 物理学 2016-08-31 W. Iwo Babiaczyk , Bogdan. R. Bulka

Carbon Nanotubes (CNTs) of sufficiently large diameter and a few layers self-collapse into flat ribbons at atmospheric pressure, forming bundles of stacked CNTs that maximize packing and thus CNT interaction. Their improved stress transfer…

We study the electron transport in metallic carbon nanotubes (CNTs) with realistic defects of different types. We focus on large CNTs with many defects in the mesoscopic range. In a recent paper we demonstrated that the electronic transport…

介观与纳米尺度物理 · 物理学 2018-11-26 Fabian Teichert , Andreas Zienert , Jörg Schuster , Michael Schreiber

Semiconducting single-walled carbon nanotubes are studied in the diffusive transport regime. The peak mobility is found to scale with the square of the nanotube diameter and inversely with temperature. The maximum conductance, corrected for…

介观与纳米尺度物理 · 物理学 2009-11-11 Xinjian Zhou , Ji-Yong Park , Shaoming Huang , Jie Liu , Paul L. McEuen

Amorphous carbon nanotubes (a-CNT) with up to four walls and sizes ranging from 200 to 3200 atoms have been simulated, starting from initial random configurations and using the Gaussian Approximation Potential [Phys. Rev. B 95, 094203…

材料科学 · 物理学 2023-03-22 C. Ugwumadu , R. Thapa , Y. Al-Majali , J. Trembly , D. A. Drabold

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…

介观与纳米尺度物理 · 物理学 2016-09-21 Eunae Lee , Jeong Won Kang , Ki-Sub Kim , Oh-Kuen Kwon

Efficient and controlled charge transport in networks of semiconducting single-walled carbon nanotubes is the basis for their application in electronic devices, especially in field-effect transistors and thermoelectrics. The recent advances…

应用物理 · 物理学 2021-11-19 Nicolas F. Zorn , Jana Zaumseil

In the present work we discuss based on extensive fully atomistic molecular dynamics simulations the dynamics of Neon atoms oscillating inside (5,5)single-walled carbon nanotubes (CNTs) and boron-nitride (BNNT) ones. Our results show that…

材料科学 · 物理学 2007-07-24 Karl M. Garcez , David L. Azevedo , Douglas S. Galvão

The strikingly different charge transport behaviors in nanocomposites of multiwall carbon nanotubes (MWNTs) and conducting polymer polyethylene dioxythiophene - polystyrene sulfonic acid (PEDOT-PSS) at low temperatures are explained by…

介观与纳米尺度物理 · 物理学 2015-05-28 Paramita Kar Choudhury , S. Ramaprabhu , K. P. Ramesh , Reghu Menon

The intrinsic charge transport of stanene is investigated by using density function theory and density function perturbation theory coupled with Boltzmann transport equations from first principles. The accurate Wannier interpolations are…

化学物理 · 物理学 2018-01-11 Yuma Nakamura , Tianqi Zhao , Jinyang Xi , Wen Shi , Dong Wang , Zhigang Shuai

High-performance solution-processed short-channel carbon nanotube (CNT) thin film transistors (TFTs) are fabricated using densely aligned arrays of metallic CNTs (m-CNTs) as source and drain electrodes, and aligned arrays of semiconducting…

介观与纳米尺度物理 · 物理学 2015-06-18 Biddut K. Sarker , Narae Kang , Saiful I. Khondaker

Monoatomic chains of molybdenum encapsulated in single walled carbon nanotubes of different chiralities are investigated using density functional theory. We determine the optimal size of the carbon nanotube for encapsulating a single atomic…

介观与纳米尺度物理 · 物理学 2015-05-27 A. García-Fuente , V. M. García-Suárez , J. Ferrer , A. Vega

Charge transport in semiconducting single-walled nanotubes (SWNTs) with Schottky-barrier contacts has been studied at high bias. We observe nearly symmetric ambipolar transport with electron and hole currents significantly exceeding 25…

材料科学 · 物理学 2007-12-05 Yung-Fu Chen , M. S. Fuhrer

Carbon nanotubes (CNT) have a very large application potential in the rapid developing field of molecular electronics. Infinite single-wall metallic CNTs have theoretically a conductance of 4e2/h because of the two electronic bands crossing…

介观与纳米尺度物理 · 物理学 2007-05-23 N. Ranjan , R. Gutierrez-Laliga , S. Krompiewski , G. Cuniberti