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The growth of single wall carbon nanotubes (SWCNT) inside host SWCNTs remains a compelling alternative to the conventional catalyst induced growth processes. It not only provides a catalyst free process but the ability to control the…

介观与纳米尺度物理 · 物理学 2021-01-28 J. Koltai , H. Kuzmany , T. Pichler , F. Simon

Electrically-tunable optical properties in materials are desirable for many applications ranging from displays to lasing and optical communication. In most two-dimensional thin-films and other quantum confined materials, these constants…

We report the observation of the intrinsic magnetic susceptibility of highly purified SWCNT samples prepared by a combination of acid treatment and density gradient ultracentrifugation (DGU). We observed that the diamagnetic susceptibility…

介观与纳米尺度物理 · 物理学 2015-07-03 Yusuke Nakai , Ryo Tsukada , Yasumitsu Miyata , Takeshi Saito , Kenji Hata , Yutaka Maniwa

We characterize the response of isolated single- (SWNT) and multi-wall (MWNT) carbon nanotubes and bundles to static electric fields using first-principles calculations and density-functional theory. The longitudinal polarizability of SWNTs…

介观与纳米尺度物理 · 物理学 2009-11-11 Boris Kozinsky , Nicola Marzari

Interactions between atoms of bound single-walled carbon nanotubes (SWNTs) are known to cause measurable distortion to the tube's original circular cross-section frame. High-resolution transmission electron microscope (TEM) investigation…

材料科学 · 物理学 2007-05-23 Z. R. Abrams , Y. Hanein

For single particle electron cryo-microscopy (cryoEM), contrast loss due to beam-induced charging and specimen movement is a serious problem, as the thin films of vitreous ice spanning the holes of a holey carbon film are particularly…

In this paper, a carbon nanotube (CNT) based single-ion detector is proposed and its performance is evaluated with atomistic quantum transport models. The sensor can detect any ion type without molecule-specific functionalization and allows…

应用物理 · 物理学 2026-02-03 Namita Narendra , Tillmann Kubis

Ever since the landmark discovery of single-walled carbon nanotubes (SWNTs) in 1993, they have been considered as ideal materials for any kind of application based on their outstanding properties (e.g. mechanical strength, thermal…

材料科学 · 物理学 2007-08-13 S. Inoue , T. Nakajima , K. Nomura , Y. Kikuchi

High-performance single-wall carbon nanotube field-effect transistors (SWNT-FETs) are fabricated using directed assembly and mass-produced carbon nanotubes (CNTs). These FETs exhibit operating characteristics comparable to state-of-the-art…

介观与纳米尺度物理 · 物理学 2009-11-11 S. A. McGill , S. G. Rao , P. Manandhar , S. Hong , P. Xiong

We investigate the photoconductance of single-walled carbon nanotube-nanocrystalhybrids. The nanocrystals are bound to the nanotubes via molecular recognition. We find that the photoconductance of the hybrids can be adjusted by the…

介观与纳米尺度物理 · 物理学 2015-05-13 B. Zebli , H. A. Vieyra , I. Carmeli , A. Hartschuh , J. P. Kotthaus , A. W. Holleitner

Cross-polarized absorption peaks of isolated single-walled carbon nanotubes were observed by a polarized photoluminescence excitation (PLE) spectroscopy. Using a simple theory for PL anisotropy, the observed PLE spectra are decomposed into…

材料科学 · 物理学 2009-11-11 Yuhei Miyauchi , Mototeru Oba , Shigeo Maruyama

Semiconducting single-walled carbon-nanotubes (SWCNTs) are an interesting material for strong-light matter coupling due to their stable excitons, narrow emission in the near infrared and high charge carrier mobilities. Furthermore, they…

材料科学 · 物理学 2021-03-17 Jan M. Lüttgens , Felix J. Berger , Jana Zaumseil

The high-bias electrical transport properties of suspended metallic single-walled carbon nanotubes (SWNTs) are investigated at various temperatures in vacuum, in various gases and when coated with molecular solids. It is revealed that…

介观与纳米尺度物理 · 物理学 2007-05-23 David Mann , Eric Pop , Jien Cao , Qian Wang , Kenneth Goodson , Hongjie Dai

Structural identification of double-walled carbon nanotubes (DWNT) is presented through a robust procedure based on the latest generation of transmission electron microscope, making possible a statistical analysis based on numerous…

An oxygen assisted hydrocarbon chemical vapor deposition (CVD) method is developed to afford large-scale highly reproducible ultra high-yield growth of vertical single-walled carbon nanotubes (SWNT). It is revealed that reactive hydrogen…

Single-wall carbon nanotube (SWNT) nanofibrils were assembled onto conductive atomic force microscopy (AFM) probes with the help of dielectrophoresis (DEP). This process involved the application of a 10 V, 2 MHz, AC bias between a…

In the present study, we continue investigation of the high-contrast vision in the inverted retina of the vertebrates eyes. We report a method of separation and purification of porcine (Sus scrofa domestica) intermediate filaments (IFs),…

介观与纳米尺度物理 · 物理学 2018-03-21 Igor Khmelinskii , Vladimir Makarov

The linear polarizability absorption spectra of the double-walled carbon nanotubes (DWNTs) have been calculated by using the tight-binding (TB) model and sum-over-state (SOS) method, supplemented by the first principles CASTEP calculations.…

材料科学 · 物理学 2009-11-13 Xiaoping Yang , Jiangwei Chen , Hui Jiang , Jinming Dong

We present experimental measurements of the electronic contribution to the Raman spectra of individual metallic single-walled carbon nanotubes (MSWNTs). Photoexcited carriers are inelastically scattered by a continuum of low-energy…

介观与纳米尺度物理 · 物理学 2011-10-20 Hootan Farhat , Stéphane berciaud , Martin Kalbac , Riichiro Saito , Tony F. Heinz , Mildred S. Dresselhaus , Jing Kong

Transistors incorporating single-wall carbon nanotubes (CNTs) as the channel material are used in a variety of electronics applications. However, a competitive CNT-based technology requires the precise placement of CNTs at predefined…