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Collective off resonant scattering of coherent light by a cold gas induces long-range interactions via interference of light scattered by different particles. In a 1D configuration these interactions grow particularly strong for particles…

量子物理 · 物理学 2015-06-15 Tobias Grießer , Helmut Ritsch

Applications based on Single Walled Carbon Nanotube (SWNT) are good example of the great need to continuously develop metrology methods in the field of nanotechnology. Contact and interface properties are key parameters that determine the…

介观与纳米尺度物理 · 物理学 2012-01-23 Julien Buchoux , Ludovic Bellon , Sophie Marsaudon , Jean-Pierre Aimé

Electrical transport through single-walled carbon nanotubes (SWNTs) is investigated by using the nearest-neighbor tight-binding model coupled with two electron reservoirs. When the SWNT-electrode coupling is not axially symmetric,…

介观与纳米尺度物理 · 物理学 2007-05-23 Junko Takahashi , Shuichi Tasaki

Electromagnetic characteristics of single-walled finite-length carbon nanotubes - absorption cross-section and field enhancement in the near zone - are theoretically studied in a wide frequency range from terahertz to visible. The analysis…

材料科学 · 物理学 2008-06-19 M. V. Shuba , S. A. Maksimenko , G. Ya. Slepyan

Telecommunications and polarimetry both require the active control of the polarization of light, Currently, this is done by combining intrinsically anisotropic materials with tunable isotropic materials into heterostructures using…

We have investigated excitons in highly-aligned single-walled carbon nanotubes (SWCNTs) through optical spectroscopy at low temperature (1.5 K) and high magnetic fields ($\textbf{\textit{B}}$) up to 55 T. SWCNT/polyacrylic acid films were…

介观与纳米尺度物理 · 物理学 2009-11-13 J. Shaver , S. A. Crooker , J. A. Fagan , E. K. Hobbie , N. Ubrig , O. Portugall , V. Perebeinos , Ph. Avouris , J. Kono

Their outstanding electrical and optical properties make semiconducting single-walled carbon nanotubes (SWCNTs) highly suitable for charge transport and emissive layers in near-infrared optoelectronic devices. However, the luminescence…

The structural and electronic properties of aluminum covered single wall carbon nanotubes (SWNT) are studied from first-principles for a large number of coverage. Aluminum-aluminum interaction that is stronger than aluminum-tube…

材料科学 · 物理学 2016-08-16 V. M. K. Bagci , O. Gülseren , T. Yildirim , Z. Gedik , S. Ciraci

In recent years, there have been conflicting reports regarding the ultrafast photoconductive response of films of single walled carbon nanotubes (CNTs), which apparently exhibit photoconductivities that can differ even in sign. Here, we…

介观与纳米尺度物理 · 物理学 2018-12-12 Peter Karlsen , Mikhail V. Shuba , Polina P. Kuzhir , Albert G. Nasibulin , Patrizia Lamberti , Euan Hendry

The low-energy electronic structure of metallic single-walled carbon nanotube (SWNT) in an external electric field perpendicular to the tube axis is investigated. Based on tight-binding approximation, a field-induced energy gap is found in…

介观与纳米尺度物理 · 物理学 2009-10-31 Xin Zhou , Hu Chen , Ou-Yang Zhong-can

Spectrally selective absorbers that maximize solar absorption and minimize thermal radiation loss are crucial for efficient solar thermal energy harvesting. However, limitations imposed by the intrinsic properties of conventional materials…

Single walled carbon nanotubes (SWNTs) have attracted immense research interest because of their remarkable physical and electronic properties. In particular, electronic devices fabricated using individual SWNT have shown outstanding device…

介观与纳米尺度物理 · 物理学 2014-05-06 Muhammad R. Islam , Saiful I. Khondaker

We present a study on the kinetics of xenon desorption from single-wall carbon nanotube (SWNT) bundles using thermal desorption spectroscopy (TDS). TD-spectra from SWNT samples show a broad desorption feature peaked at significantly higher…

凝聚态物理 · 物理学 2009-11-07 Hendrik Ulbricht , Jennah Kriebel , Gunnar Moos , Tobias Hertel

Field electron emission (FE) from a structure-defined single-walled carbon nanotube (SWNT) was observed experimentally. A series of observations of the same SWNT by scanning electron microscopy, field emission microscopy and transmission…

应用物理 · 物理学 2019-04-02 Masaru Irita , Yoshikazu Homma

The structural, electronic, and optical properties of 4 A single-walled carbon nanotubes (SWNTs) contained inside the zeolite channels have been studied based upon the density-functional theory in the local-density approximation (LDA). Our…

材料科学 · 物理学 2009-11-13 X. P. Yang , H. M. Weng , Jinming Dong

We report experimental measurements of electronic Raman scattering under resonant conditions by electrons in individual single-walled carbon nanotubes (SWNTs). The inelastic Raman scattering at low frequency range reveals a single particle…

介观与纳米尺度物理 · 物理学 2014-05-12 Xi Chen , Bairen Zhu , Anmin Zhang , Hualing Zeng , Qingming Zhang , Xiaodong Cui

We studied the nonlinear time-resolved luminescence signals due to multiexciton recombination processes in single-walled carbon nanotubes (SWNTs) using femtosecond excitation correlation (FEC) spectroscopy. From theoretical analysis of the…

材料科学 · 物理学 2015-05-13 Yuhei Miyauchi , Kazunari Matsuda , Yoshihiko Kanemitsu

We present a first-principles study of semiconducting carbon nanotubes adsorbed on the unpassivated Si(100) surface. We have found metallicity for the combined system caused by n-doping of the silicon slab representing the surface by the…

材料科学 · 物理学 2007-05-23 Salvador Barraza-Lopez , Peter M. Albrecht , Nichols A. Romero , Karl Hess

An in situ optical absorbance measurement was used to study the growth dynamics of vertically aligned single-walled carbon nanotubes (VA-SWCNTs) synthesized by chemical vapor deposition of ethanol. The growth rate of the VA-SWCNT film was…

材料科学 · 物理学 2008-01-06 Erik Einarsson , Yoichi Murakami , Masayuki Kadowaki , Shigeo Maruyama

The length of single-walled carbon nanotubes (SWCNTs) is an important metric for the integration of SWCNTs into devices and for the performance of SWCNT-based electronic or optoelectronic applications. In this work we propose a rather…

介观与纳米尺度物理 · 物理学 2016-10-19 Wenshan Li , Frank Hennrich , Benjamin S. Flavel , Manfred M. Kappes , Ralph Krupke