Thermal conductivity of carbon nanocoils

Junhua Zhao, Jianyang Wu, Jin Wu Jiang, Lixin Lu, Zhiliang Zhang, Timon Rabczuk

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The extreme reduction of the thermal conductivity by defects and folds in carbon nanocoils (CNCs) are first demonstrated using nonequilibrium molecular dynamics simulations. The thermal conductivity for two different defect types with five different folds in the CNCs is extensively studied and the maximum reduction can be up to 70% at both room temperature and 600 K by comparison of the corresponding straight single-walled carbon nanotubes. We reveal that the phonon scattering by coupled defects and folds can govern the reduction of the thermal conductivity by calculating phonon polarization vectors.

Original languageEnglish
Article number233511
JournalApplied Physics Letters
Volume103
Issue number23
DOIs
Publication statusPublished - 2013 Dec 2

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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