Experimental study on thermal conductivity of free-standing fluorinated single-layer graphene

Masahiro Narasaki, Haidong Wang, Takashi Nishiyama, Tatsuya Ikuta, Koji Takahashi

研究成果: ジャーナルへの寄稿学術誌査読

9 被引用数 (Scopus)

抄録

We measured the thermal conductivity of free-standing fluorinated single-layer graphene (FSLG) using a precise T-type method. Pristine graphene was fluorinated and suspended above the substrate using xenon difluoride gas. Compared with the thermal conductivity of pristine single-layer graphene (SLG) (∼2000 W/mK) previously measured by the same T-type method for the same original SLG, the FSLG exhibited a much lower thermal conductivity (∼80 W/mK) and a weak dependence of the thermal conductivity on nanohole defects. The experimental results suggest that the fluorine atoms and sp3 bonding in the FSLG strongly contributed to phonon scattering. The phonon scattering by the fluorine atoms and sp3 bonding has a dominant effect on the thermal conductivity decrease over the phonon scattering by nanohole defects. This study lays a foundation for the thermal measurement of 2D fluorinated materials and benefits future applications of fluorinated graphene.

本文言語英語
論文番号093103
ジャーナルApplied Physics Letters
111
9
DOI
出版ステータス出版済み - 8月 28 2017

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(その他)

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