How does the chirality change the properties (electronic) of carbon nanotubes (CNTs)?

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Yuri Mirgorod

Pervaiz Ahmad

I recommend

N. Berova, N. Harada, and K. Nakanishi, Encyclopaedia of Spectroscopy and Spectrometry, J. C. Lindon, G. E. Tranter, and J. L. Holmes, Eds., Academic Press: London, p. 470 (2000).

D. A. Lightner and J. E. Gurst, Organic Conformational Analysis and Stereochemistry From Circular Dichroism Spectroscopy, Wiley: New York (2000).

For biological environments, I recommend using lutein with a surfactant

Preprint Quantum entanglement in micellar solutions of ionic surfactants.

Fiona Smail

You will probably know (most) of this stuff about CNTs...

"Armchair" CNTs are metallic - there always exist electronic states that cross the corner points of the first Brillouin Zone, and therefore these nanotubes always show a metallic behaviour

"Zigzag" CNTs are semiconducting - there are no electronic states that overlap.

In between these two extremes of the CNT lattice structure are a whole range of CNT chiralities - depending on the chirality of SWNTs, their band gap can vary and they show semiconducting or metallic behaviour. The different magnitudes of the band gaps will affect their electronic properties.

(this is a brief summary out of the introduction to this paper - which might be helpful to you:

Article Structural and electronic properties of armchair (7, 7) carb...

This website might help too: http://www.iue.tuwien.ac.at/phd/pourfath/node19.html

There's quite a lot of information available through online searching on electronic structure of CNTs where people have looked at different chiralities and diameters

Are you more interested on the impact of defects in the lattice structure, or the effect of chirality/diameter? The two factors are quite different things.

This article might help:

Article Chirality-Dependent Properties of Carbon Nanotubes: Electron...