Thermal Conductivity Enhancement of Coaxial Carbon@Boron Nitride Nanotube Arrays
Journal article, 2017

We demonstrate the thermal conductivity enhancement of the vertically aligned carbon nanotube (CNT) arrays (from ?15.5 to 29.5 W/mK, ?90% increase) by encapsulating outer boron nitride nanotube (BNNT, 0.97 nm-thick with ?3-4 walls). The heat transfer enhancement mechanism of the coaxial C@BNNT was further revealed by molecular dynamics simulations. Because of their highly coherent lattice structures, the outer BNNT serves as additional heat conducting path without impairing the thermal conductance of inner CNT. This work provides deep insights into tailoring the heat transfer of arbitrary CNT arrays and will enable their broader applications as thermal interface material.

carbon nanotube arrays

molecular dynamics simulation

thermal conductivity

boron nitride nanotube

coaxial structure

Author

Lin Jing

Nanyang Technological University

Kabir Majid Samani

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

B. Liu

Nanyang Technological University

Hongling Li

Nanyang Technological University

Roland Yingjie Tay

Nanyang Technological University

S. H. Tsang

Nanyang Technological University

O. Cometto

Nanyang Technological University

ANDREAS NYLANDER

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Johan Liu

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

E. H. T. Teo

Nanyang Technological University

Alfred Iing Yoong Tok

Nanyang Technological University

ACS Applied Materials & Interfaces

1944-8244 (ISSN) 1944-8252 (eISSN)

Vol. 9 17 14555-14560

Subject Categories

Materials Chemistry

Composite Science and Engineering

DOI

10.1021/acsami.7b02154

More information

Latest update

9/21/2018