Thermal Boundary Conductance Mapping at Metal-MoSe2 Interface

David B. Brown, Xufan Li, Kai Xiao, David B. Geohegan, Satish Kumar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Increasing power density in the microelectronic devices has led to thermal management concerns to ensure efficient, reliable, and long-term operation. As device dimensions continue to decrease, the interfaces of dissimilar materials (e.g., metal-semiconductor) may limit heat removal from the device active region. Improving the thermal transport across interfaces is a necessary consideration during the design process and necessitates accurate measurement of the thermal boundary conductance (TBC) and understanding of transport mechanisms. In addition, low-dimensional materials, such as 1D nanotubes and nanowires and 2D sheets, have attracted considerable interest because of their unique physical properties and small footprint. Two-dimensional transition metal dichalcogenides (TMDs) have been studied extensively for their electrical properties, including the metal-TMD electrical contact resistance, but the thermal properties have received much less attention. We measured and analyzed the TBC across Al-Ti-MoSe2-SiO2 interface using time-domain thermoreflectance. The results are an order of magnitude larger than previously reported values at MoSe2-Au interfaces, but still near the low end for typical metal-semiconductor interfaces.

Original languageEnglish
Title of host publicationProceedings of the 17th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages67-72
Number of pages6
ISBN (Electronic)9781538612729
DOIs
StatePublished - Jul 24 2018
Event17th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2018 - San Diego, United States
Duration: May 29 2018Jun 1 2018

Publication series

NameProceedings of the 17th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2018

Conference

Conference17th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2018
Country/TerritoryUnited States
CitySan Diego
Period05/29/1806/1/18

Funding

The authors would like to thank Ben Hollerbach at the Georgia Tech Institute of Electronics and Nanotechnology (IEN) for assistance with sample patterning. Synthesis of the 2D materials was supported by the Materials Science and Engineering Division, Office of Basic Energy Sciences, U.S. Department of Energy.

Keywords

  • 2D materials
  • MoSe
  • thermal boundary conductance
  • time-domain thermoreflectance

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