Simultaneous measurement of anisotropic thermal conductivity and thermal boundary conductance of 2-dimensional materials

@article{Rahman2019SimultaneousMO,
  title={Simultaneous measurement of anisotropic thermal conductivity and thermal boundary conductance of 2-dimensional materials},
  author={Mizanur Rahman and Mohammadreza Shahzadeh and Simone Pisana},
  journal={Journal of Applied Physics},
  year={2019}
}
The rapidly increasing number of 2-dimensional (2D) materials that have been isolated or synthesized provides an enormous opportunity to realize new device functionalities. Whereas their optical and electrical characterization have been more readily reported, quantitative thermal characterization is more challenging due to the difficulties with localizing heat flow. Optical pump-probe techniques that are well-established for the study of bulk materials or thin-films have limited sensitivity to… 

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References

SHOWING 1-10 OF 59 REFERENCES
A frequency-domain thermoreflectance method for the characterization of thermal properties.
TLDR
A frequency-domain thermoreflectance method for measuring the thermal properties of homogenous materials and submicron thin films and its sensitivity to various thermal properties is given, along with results from measurements of several standard materials over a wide range of thermal diffusivities.
Measuring the thermal properties of anisotropic materials using beam-offset frequency domain thermoreflectance
Thermoreflectance techniques have become popular to measure the thermal properties of thin films such as thermal conductivity and thermal boundary conductance (TBC). Varying the focused spot sizes of
Simultaneous measurement of in-plane and through-plane thermal conductivity using beam-offset frequency domain thermoreflectance.
TLDR
This paper presents a method for the simultaneous measurement of k⊥ and k∥ using beam-offset frequency domain thermoreflectance (FDTR) with robust uncertainty estimation and demonstrates that sweeping both heating frequency and beam offset results in a reduction of measurement uncertainty.
Measurement of the anisotropic thermal conductivity of molybdenum disulfide by the time-resolved magneto-optic Kerr effect
We use pump-probe metrology based on the magneto-optic Kerr effect to measure the anisotropic thermal conductivity of (001)-oriented MoS2 crystals. A ≈20 nm thick CoPt multilayer with perpendicular
Probing anisotropic heat transport using time-domain thermoreflectance with offset laser spots.
TLDR
An analytic solution is derived for the time-domain thermoreflectance signal that occurs using non-concentric pump and probe beams on multilayer anisotropic materials and it is found that for samples where in-plane heat diffusion distances are comparable to the spot size, the signal is sensitive to in- plane heat transport.
Measurement of Lateral and Interfacial Thermal Conductivity of Single- and Bilayer MoS2 and MoSe2 Using Refined Optothermal Raman Technique.
TLDR
A refined version of the optothermal Raman technique is demonstrated to measure the thermal transport properties of two TMDC materials, MoS2 and MoSe2, in single-layer (1L) and bilayer (2L) forms, and the interfacial thermal conductance is substantially smaller than previously assumed.
Thermal property microscopy with frequency domain thermoreflectance.
TLDR
FDTR is extended into an imaging technique capable of producing micrometer-scale maps of several thermophysical properties simultaneously, indicating its utility for mapping thermal properties in integrated circuits.
Thermal Properties of Two Dimensional Layered Materials
The rise of graphene has motivated intensive investigation into other two‐dimensional layered materials (2DLMs). In addition to their superior optical, electrical, and mechanical properties, 2DLMs
Thermal boundary conductance accumulation and interfacial phonon transmission: Measurements and theory
The advances in phonon spectroscopy in homogeneous solids have unveiled extremely useful physics regarding the contribution of phonon energies and mean-free paths to the thermal transport in solids.
Layer thickness-dependent phonon properties and thermal conductivity of MoS2
For conventional materials, the thermal conductivity of thin films is usually suppressed when the thickness decreases due to phonon-boundary scattering. However, this is not necessarily true for the
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