Vol 4: Low thermal conductivity in ultrathin carbon nanotube 2, 1.Report as inadecuate



 Vol 4: Low thermal conductivity in ultrathin carbon nanotube 2, 1.


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This article is from Scientific Reports, volume 4.AbstractMolecular dynamic simulations reveal that the ultrathin carbon nanotube CNT 2, 1 with a reconstructed structure exhibits a surprisingly low thermal conductivity, which is only ~16–30% of those in regular CNTs, e.g. CNT 2, 2 and 5, 5. Detailed lattice dynamic calculations suggest that the acoustic phonon modes greatly soften in CNT 2, 1 as compared to regular CNTs. Moreover, both phonon group velocities and phonon lifetimes strikingly decrease in CNT 2, 1, which result in the remarkable reduction of thermal conductivity. Besides, isotope doping and chemical functionalization enable the further reduction of thermal conductivity in CNT 2, 1.



Author: Zhu, Liyan; Li, Baowen

Source: https://archive.org/



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