APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter iResearch App Facebook

Applied Physics Letters / Volume 102 / Issue 3 / NANOSCALE SCIENCE AND TECHNOLOGY

Appl. Phys. Lett. 102, 033104 (2013); http://dx.doi.org/10.1063/1.4776667 (5 pages)

Effect of grain boundaries on thermal transport in graphene

Andrey Y. Serov1,2, Zhun-Yong Ong2,3, and Eric Pop1,2,4

1Department of Electrical & Computer Engineering, University of Illinois, Urbana-Champaign, Illinois 61801, USA
2Micro and Nanotechnology Laboratory, University of Illinois, Urbana-Champaign, Illinois 61801, USA
3Department of Physics, University of Illinois, Urbana-Champaign, Illinois 61801, USA
4Beckman Institute, University of Illinois, Urbana-Champaign, Illinois 61801, USA

View MapView Map

(Received 24 October 2012; accepted 29 December 2012; published online 23 January 2013)

We investigate the influence of grain boundaries (GBs), line defects (LDs), and chirality on thermal transport in graphene using non-equilibrium Green's functions. At room temperature, the ballistic thermal conductance is ∼4.2 GW m−2 K−1, and single GBs or LDs yield transmission from 50% to 80% of this value. LDs with carbon atom octagon defects have lower thermal transmission than that of GBs with pentagon and heptagon defects. We apply our findings to study the thermal conductivity of polycrystalline graphene for practical applications, and find that the type and size of GBs play an important role when grain sizes are smaller than a few hundred nanometers.

© 2013 American Institute of Physics

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

chirality, grain boundaries, grain size, graphene, Green's function methods, thermal conductivity

PACS

  • 61.72.Mm

    Grain and twin boundaries

  • 66.70.Lm

    Other systems such as ionic crystals, molecular crystals, nanotubes, etc.

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.4776667

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.

    References

    F. Müllerplathe, J. Chem. Phys. 106, 6082 (1997)JCPSA6000106000014006082000001.

    N. Mingo and L. Yang, Phys. Rev. B 68, 245406 (2003).

    L. Lindsay and D. A. Broido, Phys. Rev. B 81, 205441 (2010).

    C. Jeong, S. Datta, and M. Lundstrom, J. Appl. Phys. 111, 093708 (2012)JAPIAU000111000009093708000001.

    M. Galperin, S. Toledo, and A. Nitzan, J. Chem. Phys. 117, 10817 (2002)JCPSA6000117000023010817000001.

    Y. Xu, J.-S. Wang, W. Duan, B.-L. Gu, and B. Li, Phys. Rev. B 78, 224303 (2008).

    Y. Lu and J. Guo, Appl. Phys. Lett. 101, 043112 (2012)APPLAB000101000004043112000001.

    N. Mingo and D. A. Broido, Phys. Rev. Lett. 95, 096105 (2005).

    P. E. Hopkins, J. Appl. Phys. 106, 013528 (2009)JAPIAU000106000001013528000001.

    Y. Xu, X. Chen, B.-L. Gu, and W. Duan, Appl. Phys. Lett. 95, 233116 (2009)APPLAB000095000023233116000001;, Z. Guo, D. Zhang, and X.-G. Gong, ibid. 95, 163103 (2009)APPLAB000095000016163103000001;, J.-W. Jiang, J.-S. Wang, and B. Li, Phys. Rev. B 79, 205418 (2009).

    Z. Aksamija and I. Knezevic, Appl. Phys. Lett. 98, 141919 (2011)APPLAB000098000014141919000001.

    L. Lindsay, D. A. Broido, and N. Mingo, Phys. Rev. B 82, 115427 (2010).

    A. F. Mayadas, M. Shatzkes, and J. F. Janak, Appl. Phys. Lett. 14, 345 (1969)APPLAB000014000011000345000001.


For access to citing articles, you need to log in.


Figures (5)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)



Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Effect of grain boundaries on thermal transport in graphene
Go to AIP Home   © AIP Publishing LLC
close