Basal-plane thermal conductivity of few-layer molybdenum disulfide

Journal Article · Mon May 19 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4876965· OSTI ID:22273388

Jo, Insun; Ou, Eric; Shi, Li ^[1]; Pettes, Michael Thompson ^[1]; Wu, Wei ^[2]

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1. Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712 (United States)
2. Department of Mechanical Engineering and the Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269 (United States)

We report the in-plane thermal conductivity of suspended exfoliated few-layer molybdenum disulfide (MoS{sub 2}) samples that were measured by suspended micro-devices with integrated resistance thermometers. The obtained room-temperature thermal conductivity values are (44–50) and (48–52) W m{sup −1} K{sup −1} for two samples that are 4 and 7 layers thick, respectively. For both samples, the peak thermal conductivity occurs at a temperature close to 120 K, above which the thermal conductivity is dominated by intrinsic phonon-phonon scattering although phonon scattering by surface disorders can still play an important role in these samples especially at low temperatures.

• OSTI ID: 22273388
• Journal Information: Applied Physics Letters, Vol. 104, Issue 20; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
LAYERS
MOLYBDENUM SULFIDES
PHONONS
SCATTERING
THERMAL CONDUCTIVITY
THERMOMETERS