Nano Research

, Volume 7, Issue 8, pp 1232–1240 | Cite as

High thermal conductivity of suspended few-layer hexagonal boron nitride sheets

  • Haiqing Zhou
  • Jixin Zhu
  • Zheng Liu
  • Zheng Yan
  • Xiujun Fan
  • Jian Lin
  • Gunuk Wang
  • Qingyu YanEmail author
  • Ting YuEmail author
  • Pulickel M. AjayanEmail author
  • James M. TourEmail author
Research Article


The thermal conduction of suspended few-layer hexagonal boron nitride (h-BN) sheets was experimentally investigated using a noncontact micro-Raman spectroscopy method. The first-order temperature coefficients for monolayer (1L), bilayer (2L) and nine-layer (9L) h-BN sheets were measured to be −(3.41 ± 0.12) × 10−2, −(3.15 ± 0.14) × 10−2 and −(3.78 ± 0.16) × 10−2 cm−1·K−1, respectively. The room-temperature thermal conductivity of few-layer h-BN sheets was found to be in the range from 227 to 280 W·m−1·K−1, which is comparable to that of bulk h-BN, indicating their potential use as important components to solve heat dissipation problems in thermal management configurations.


two-dimensional hexagonal boron nitride (h-BN) thermal conductivity Raman spectroscopy 


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Supplementary material

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Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Department of ChemistryRice UniversityHoustonUSA
  2. 2.Division of Physics and Applied Physics, School of Physical and Mathematical SciencesNanyang Technological UniversityNanyangSingapore
  3. 3.Department of Materials Science and NanoEngineeringRice UniversityHoustonUSA
  4. 4.School of Materials Science and EngineeringNanyang Technological UniversityNanyang Avenue, NanyangSingapore
  5. 5.College of Electronic Information and Control EngineeringBeijing University of TechnologyBeijingChina
  6. 6.The Smalley Institute for Nanoscale Science and TechnologyRice UniversityHoustonUSA

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