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We have performed low-temperature STM measurements on single-wall carbon nanotubes that are freely suspended over a trench. The nanotubes were grown by CVD on a Pt substrate with predefined trenches etched into it. Atomic resolution was…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 B. J. LeRoy , S. G. Lemay , J. Kong , C. Dekker

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…

Materials Science · Physics 2007-05-23 Z. R. Abrams , Y. Hanein

A method is introduced to isolate and measure the electrical transport properties of individual single-walled carbon nanotubes (SWNTs) aligned on an ST-cut quartz, from room temperature down to 2 K. The diameter and chirality of the…

Mesoscale and Nanoscale Physics · Physics 2014-08-26 Tohru Watanabe , El-Hadi S. Sadki , Takahide Yamaguchi , Yoshihiko Takano

The extraordinary one-dimensional properties of carbon nanotubes have captivated scientists and engineers since their discovery in the early 1990s. In particular, semiconducting single-wall carbon nanotubes (SWCNTs) are highly promising for…

Applied Physics · Physics 2026-04-09 Ting-Wei Chang , Gustavo M. Rodriguez-Barrios , Andrey Baydin , Junichiro Kono

Single wall carbon nanotubes (SWCNT) exhibit remarkable optical and electrical properties making them one of the most promising materials for next generation electronic and optoelectronic devices. Their electronic properties strongly depend…

We use conducting-tip atomic force microscopy (AFM) to measure local electronic properties of single wall carbon nanotube (SWNT) circuits on insulating substrates. When a voltage is applied to the tip and AFM feedback is used to position…

Mesoscale and Nanoscale Physics · Physics 2016-08-15 M. Freitag , M. Radosavljević , W. Clauss , A. T. Johnson

The structures and symmetries of single-walled carbon nanotubes (SWNTs) are introduced in detail. The physical properties of SWNTs induced by their symmetries can be described by tensors in mathematical point of view. It is found that there…

Mesoscale and Nanoscale Physics · Physics 2009-09-29 Z. C. Tu , Z. C. Ou-Yang

Single walled carbon nanotubes (SWNTs) are luminescent. Up to now, two preparation methods, both of which isolate individual SWNTs, have enabled the detection of nanotube bandgap photoluminescence (PL): encapsulation of individual SWNTs…

Condensed Matter · Physics 2009-11-10 J. Lefebvre , J. M. Fraser , Y. Homma , P. Finnie

With the empirical bond polarizability model, the nonresonant Raman spectra of the chiral and achiral single-wall carbon nanotubes (SWCNTs) under uniaxial and torsional strains have been systematically studied by \textit{ab initio} method.…

Mesoscale and Nanoscale Physics · Physics 2007-07-31 Gang Wu , Jian Zhou , Jinming Dong

We have studied the electronic structure and charge-carrier dynamics of individual single-wall carbon nanotubes (SWNTs) and nanotube ropes using optical and electron-spectroscopic techniques. The electronic structure of semiconducting SWNTs…

Materials Science · Physics 2009-11-10 A. Hagen , G. Moos , V. Talalaev , J. W. Tomm , T. Hertel

Structural and thermal characteristics of crystalline ropes of single-wall carbon nanotubes (SWCNTs) are investigated. Novel crystalline ropes of polygonized SWCNTs produced by laser irradiation exhibit rounded-hexagonal cross sections in…

Materials Science · Physics 2015-10-28 M. J. Lopez , A. Rubio , J. A. Alonsos

We report optical separation of metallic and semiconducting single walled carbon nanotubes of specific diameters from well-dispersed, stable solution. This phenomenon of optical separation was studied using lamps of different frequencies…

Mesoscale and Nanoscale Physics · Physics 2015-09-01 Madhusudana Gopannagari , Vikram Bakaraju , Harsh Chaturvedi

Photoluminescence properties of semiconducting single wall carbon nanotubes (s-SWNT) thin films with different metallic single wall carbon nanotubes (m-SWNT) concentrations are reported. s-SWNT purified samples are obtained by polymer…

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…

Mesoscale and Nanoscale Physics · Physics 2012-01-23 Julien Buchoux , Ludovic Bellon , Sophie Marsaudon , Jean-Pierre Aimé

This paper proposes a bottom-up sequence of modeling steps leading to a nanoscopically informed continuum, and as such macroscopic, theory of single-walled carbon nanotubes (SWCNTs). We provide a description of the geometry of the two most…

Mesoscale and Nanoscale Physics · Physics 2011-11-22 Chandrajit Bajaj , Antonino Favata , Paolo Podio-Guidugli

The electronic Raman scattering (ERS) features of single-walled carbon nanotubes (SWNTs) can reveal a wealth of information about their electronic structures, but have previously been thought to appear exclusively in metallic (M-) but not…

Mesoscale and Nanoscale Physics · Physics 2021-01-01 Yuecong Hu , Shaochuang Chen , Daqi Zhang , Xin Cong , Sida Sun , Jiangbin Wu , Feng Yang , Juan Yang , Ping-heng Tan , Yan Li

Nonchiral single wall carbon nanotubes with an "armchair" wrapping are theoretically predicted to be conducting, and high purity samples consisting predominantly of these tubes exhibit metallic behavior with an intrinsic resistivity which…

The single-wall carbon nanotube (SWNT) can be a one-dimensional topological insulator, which is characterized by a $\mathbb{Z}$-topological invariant, winding number. Using the analytical expression for the winding number, we classify the…

Mesoscale and Nanoscale Physics · Physics 2019-03-13 Rin Okuyama , Wataru Izumida , Mikio Eto

A freestanding film of vertically aligned single-walled carbon nanotubes (VA-SWNTs) synthesized by the alcohol catalytic chemical vapor deposition (ACCVD) method was observed directly by transmission electron microscopy (TEM). These…

Scanning tunneling microscopy (STM) gives us the opportunity to map the surface of functionalized carbon nanotubes in an energy resolved manner and with atomic precision. But this potential is largely untapped, mainly due to sample…

Mesoscale and Nanoscale Physics · Physics 2011-02-28 P. Nemes-Incze , Z. Kónya , I. Kiricsi , Á. Pekker , Z. E. Horváth , K. Kamarás , L. P. Biró
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