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Title: Temperature-Dependent Thermal Boundary Conductance of Monolayer MoS2 by Raman Thermometry

Journal Article · · ACS Applied Materials and Interfaces

The electrical and thermal behavior of nanoscale devices based on two-dimensional (2D) materials is often limited by their contacts and interfaces. Here we report the temperature-dependent thermal boundary conductance (TBC) of monolayer MoS2 with AlN and SiO2, using Raman thermometry with laser-induced heating. The temperature-dependent optical absorption of the 2D material is crucial in such experiments, which we characterize here for the first time above room temperature. We obtain TBC ~ 15 MW m–2 K–1 near room temperature, increasing as ~ T0.65 in the range 300–600 K. The similar TBC of MoS2 with the two substrates indicates that MoS2 is the “softer” material with weaker phonon irradiance, and the relatively low TBC signifies that such interfaces present a key bottleneck in energy dissipation from 2D devices. As a result, our approach is needed to correctly perform Raman thermometry of 2D materials, and our findings are key for understanding energy coupling at the nanoscale.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515; DGE-114747; EEC-1449548; 1542883; 1534279
OSTI ID:
1417661
Journal Information:
ACS Applied Materials and Interfaces, Vol. 9, Issue 49; ISSN 1944-8244
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 97 works
Citation information provided by
Web of Science

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A Review on Investigation of Graphene Thermal Property: Recent Development in Measurement Techniques journal July 2019
Anomalous lattice vibrations of CVD-grown monolayer MoS 2 probed using linear polarized excitation light journal January 2019
Engineering Field Effect Transistors with 2D Semiconducting Channels: Status and Prospects journal July 2019
Thermal boundary conductance of two-dimensional MoS 2 interfaces journal August 2019
Study of the photoresponse behavior of a high barrier Pd/MoS 2 /Pd photodetector journal June 2019
Thermal properties of thin films made from MoS2 nanoflakes and probed via statistical optothermal Raman method journal September 2019
Predicting interfacial thermal resistance by machine learning journal May 2019
Energy dissipation in van der Waals 2D devices journal June 2019
Thermal Transport in 2D Semiconductors—Considerations for Device Applications journal August 2019
Interfacial Thermal Contact Conductance inside the Graphene–Bi 2 Te 3 Heterostructure journal May 2019
Flattening van der Waals heterostructure interfaces by local thermal treatment journal December 2019
A Review of Experimental and Computational Advances in Thermal Boundary Conductance and Nanoscale Thermal Transport across Solid Interfaces journal August 2019
Engineering thermal and electrical interface properties of phase change memory with monolayer MoS 2 journal February 2019
Nanoscale Thermal Transport in 2D Nanostructures from Cryogenic to Room Temperature journal August 2019
Ultrahigh thermal isolation across heterogeneously layered two-dimensional materials journal August 2019
Direct Observation of Monolayer MoS2 Prepared by CVD Using In-Situ Differential Reflectance Spectroscopy journal November 2019
Direct observation of the CVD growth of monolayer MoS 2 using in situ optical spectroscopy journal January 2019
Research Update: Recent progress on 2D materials beyond graphene: From ripples, defects, intercalation, and valley dynamics to straintronics and power dissipation journal August 2018
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