Ultrahigh Thermal Conductivity of Interface Materials by Silver-Functionalized Carbon Nanotube Phonon Conduits

Daewoo Suh; Choong Man Moon; Duckjong Kim; Seunghyun Baik

doi:10.1002/adma.201600642

Ultrahigh Thermal Conductivity of Interface Materials by Silver-Functionalized Carbon Nanotube Phonon Conduits

Adv Mater. 2016 Sep;28(33):7220-7. doi: 10.1002/adma.201600642. Epub 2016 Jun 8.

Authors

Daewoo Suh¹, Choong Man Moon², Duckjong Kim³, Seunghyun Baik^{1

4}

Affiliations

¹ School of Mechanical Engineering, Sungkyunkwan University, Suwon, 440-746, Korea.
² Center for Advanced Metamaterials, Daejeon, 305-343, Korea.
³ Department of Nano-Mechanics, Korea Institute of Machinery and Materials, Daejeon, 305-343, Korea.
⁴ Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Sungkyunkwan University, Suwon, 440-746, Korea.

PMID: 27273764
DOI: 10.1002/adma.201600642

Abstract

An ultrahigh thermal conductivity (κ = 160 W m(-1) K(-1) ) of thermal interface materials is achieved with a high enhancement factor (96). A small amount (2.3 vol%) of 1D multiwalled carbon nanotubes (MWNTs) with high κ constructs effective phonon transport pathways between microscale silver-flake islands, and a solid phonon transport junction is realized by the coalescence of silver nanoparticles pre-functionalized on the MWNTs.

Keywords: carbon nanotubes; electronics cooling; silver nanoparticles; thermal conductivity; thermal interface materials.