Binding energy of radial deformed single walled carbon nanotubes

Yanting Shen; Dominic Zerulla

doi:10.1117/12.2319700

7 September 2018 Binding energy of radial deformed single walled carbon nanotubes

Yanting Shen, Dominic Zerulla

Proceedings Volume 10731, Nanostructured Thin Films XI; 107310D (2018) https://doi.org/10.1117/12.2319700
Event: SPIE Nanoscience + Engineering, 2018, San Diego, California, United States

Abstract

Carbon nanotubes, and more specifically single walled carbon nanotubes (SWNTs), possess unusual properties which are valuable for nanotechnology and other fields of materials science and technology, owing to their extraordinary thermal, electrical, and in particular mechanical properties. Most of the desirable mechanical properties, including a high tensile strength, result from the covalent sp²-bonds formed between individual carbon atoms. However, SWNTs are much softer in their radial compared to their axial direction, which results in a reversible elastic deformation of the cross section when applying sufficiently strong hydrostatic pressures. This article provides further evidence, via time dependent Raman spectroscopy, that a stable deformed state exists as a result of van-der-Waals-interactions within individual tubes and specifically that these tubes can fully recover from this deformed state on surprisingly long time scales on the order of tens of minutes. In order to distinguish inter-tube from intra-tube effects, all experiments have been performed with densely packed, vertically aligned, free-standing SWNT arrays in comparison to individual, de-bundled SWNTs. These insights lead to far reaching conclusions regarding the mechanical properties and binding energies of the found stable state and, via a detailed analysis of D-mode, enable the distinction of fully reversible deformations from defect induced states.¹

Conference Presentation

Citation Download Citation

Yanting Shen and Dominic Zerulla "Binding energy of radial deformed single walled carbon nanotubes", Proc. SPIE 10731, Nanostructured Thin Films XI, 107310D (7 September 2018); https://doi.org/10.1117/12.2319700

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available