By Topic

Length effect of (15,15) single-walled carbon nanotube on its energy and Young's modulus studied using linear scaling quantum mechanical method

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Cai, J. ; Sch. of Nucl. Sci. & Eng., North China Electr. Power Univ., Beijing, China

By using a linear scaling self-consistent-charge density functional tight binding (SCC-DFTB) method, the energy and the Young's modulus as a function of tube length for (15, 15) single-walled carbon nanotubes (SWCNTs) are investigated. It was found that with increasing the length of SWCNTs the Young's modulus increases rapidly, then, remains a slow increase, and ultimately approaches a constant value after the length is increased to 15 nm. While a reversed variation tendency was found for the average energy of atoms in SWCNTs with change of the tube length. These characters of the length-dependent energy and Young's modulus can be quantitatively explained by a simple formula involving the surface energy and bulk energy.

Published in:

Nanoelectronics Conference (INEC), 2010 3rd International

Date of Conference:

3-8 Jan. 2010