Boundary Condition and Strain Effects on the Quality Factors of Single Walled Carbon Nanotubes
Cited 0 times inCited 0 times in
- Boundary Condition and Strain Effects on the Quality Factors of Single Walled Carbon Nanotubes
- Kim, Sung Youb; Park, H.S.
- Boundary conditions; Nanotubes; Quality factor; Strain
- Issue Date
- AMER SCIENTIFIC PUBLISHERS
- JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE, v.8, no.5, pp.814 - 819
- We utilize classical molecular dynamics to study energy dissipation (the Q-factors) of carbon nanotube-based nanoresonators undergoing flexural oscillations. Specifically, we have studied the difference in Q-factors of nanotubes with fixed/fixed and fixed/free boundary conditions. In doing so, we have found that fixed/fixed nanotubes have significantly higher Q-factors, particularly at low temperatures. Furthermore, we have found that mechanical strain can be utilized to enhance the Q-factors of fixed/fixed nanotubes by factors of 2-4 across a range of temperatures for tensile strains ranging from 0 to 6%. The results collectively indicate that fixed/fixed carbon nanotubes should be preferable for NEMS applications at low temperature due to a combination of inherently higher Q-factors, and the fact that the Q-factors can be further improved through the application of tensile strain.
- ; Go to Link
- Appears in Collections:
- MEN_Journal Papers
- Files in This Item:
- There are no files associated with this item.
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.