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Characterization of Thermal Transport in One-dimensional Solid Materials
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Phonon thermal conduction in novel 2D materials.

Xiangfan Xu1, Jie Chen, Baowen Li

  • 1Center for Phononics and Thermal Energy Science, School of Physics Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China. China-EU Joint Lab for Nanophononics, Tongji University, Shanghai 200092, People's Republic of China. Institute for Advanced Study, Tongji University, Shanghai 200092, People's Republic of China.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
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Understanding phonon thermal transport in two-dimensional (2D) materials is key for nanoelectronics. This review details experimental and theoretical methods for studying heat conduction in 2D systems like graphene.

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Phonon thermal transport is critical for heat management in micro- and nano-electronic devices.
  • Significant advancements exist for one-dimensional (1D) systems.
  • Research on two-dimensional (2D) systems lags due to material availability and measurement challenges.

Purpose of the Study:

  • To review experimental techniques and theoretical approaches for phonon thermal transport in 2D materials.
  • To discuss challenges and problems in measuring thermal transport in 2D systems.
  • To compare existing experimental data and highlight key factors influencing heat conduction.

Main Methods:

  • Experimental techniques for thermal measurements in 2D materials.
  • Theoretical approaches, including atomistic simulations and continuum models.
  • Comparative analysis of data from various 2D material systems.

Main Results:

  • Limited data exists for 2D systems compared to 1D.
  • Fabrication of suspended samples presents significant technical hurdles.
  • Size, dimensionality, anisotropy, and mode contributions significantly affect thermal transport.

Conclusions:

  • Further development of experimental and theoretical methods is needed for 2D materials.
  • Understanding phonon transport in 2D systems is crucial for next-generation electronics.
  • Graphene, boron nitride, MoS2, black phosphorus, and silicene are key materials for future study.