DOI: 10.1063/1.4895344. Phonon thermal conductivity of monolayer MoS2: A comparison with single layer graphene

Phonon thermal conductivity of monolayer MoS2: A comparison with single layer graphene

10.1063/1.4895344

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We investigate the size and edge roughness dependence on thermal conductivity of monolayer MoS2 (MLMoS2) by phonon Boltzmann transport equation combined with relaxation time approximation. The relative contribution of spectral phonons to thermal conductivity is explored, and we compared the characteristics of phonon transport with those in single layer graphene (SLG), which is a representative two-dimensional material. Quite different from SLG, because of the ultra-short intrinsic phonon mean free path, the thermal conductivity of MLMoS2 ribbons is size and roughness insensitive. The LA phonons have the major contribution to thermal conductivity of MLMoS2, and the ZA phonons in MLMoS2 have high relative contribution to thermal conductivity. The relative contribution to thermal conductivity from both high frequency and low frequency phonons in MLMoS2 is lower than that in SLG. The underlying mechanism of these distinct characteristics results from the different phonon dispersions and anharmonic characteristic between MLMoS2 and SLG.

Bibliography

Wei, X., Wang, Y., Shen, Y., Xie, G., Xiao, H., Zhong, J., & Zhang, G. (2014). Phonon thermal conductivity of monolayer MoS2: A comparison with single layer graphene. Applied Physics Letters, 105(10).

Authors 7

Xiaolin Wei (first)
Yongchun Wang (additional)
Yulu Shen (additional)
Guofeng Xie (additional)
Huaping Xiao (additional)
Jianxin Zhong (additional)
Gang Zhang (additional)

References 40 Referenced 105

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{'volume-title': 'Electrons and Phonons: The Theory of Transport Phenomena in Solids', 'year': '1962', 'key': '2023070422483841900_c25'} / Electrons and Phonons: The Theory of Transport Phenomena in Solids (1962)
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Dates

Type	When
Created	10 years, 11 months ago (Sept. 8, 2014, 8:30 p.m.)
Deposited	2 years, 2 months ago (July 5, 2023, 5:32 a.m.)
Indexed	2 weeks, 2 days ago (Aug. 21, 2025, 12:50 p.m.)
Issued	10 years, 11 months ago (Sept. 8, 2014)
Published	10 years, 11 months ago (Sept. 8, 2014)
Published Online	10 years, 11 months ago (Sept. 8, 2014)
Published Print	10 years, 11 months ago (Sept. 8, 2014)

Funders 2

Scientific Research Fund of Education Department of Hunan Province
Awards2
1. 13B117
2. 20110001120133
National Natural Science Foundation of China 10.13039/501100001809
Region: Asia
gov (National government)
Labels11
1. Chinese National Science Foundation
2. Natural Science Foundation of China
3. National Science Foundation of China
4. NNSF of China
5. NSF of China
6. 国家自然科学基金委员会
7. National Nature Science Foundation of China
8. Guójiā Zìrán Kēxué Jījīn Wěiyuánhuì
9. NSFC
10. NNSF
11. NNSFC
Awards1
1. 11275163;11274011;11204262;11304264

BibTeX

@article{Wei_2014, title={Phonon thermal conductivity of monolayer MoS2: A comparison with single layer graphene}, volume={105}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.4895344}, DOI={10.1063/1.4895344}, number={10}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Wei, Xiaolin and Wang, Yongchun and Shen, Yulu and Xie, Guofeng and Xiao, Huaping and Zhong, Jianxin and Zhang, Gang}, year={2014}, month=sep }

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          2014,
          9,
          8
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      ]
    }
  },
  "URL": "http://dx.doi.org/10.1063/1.4895344",
  "relation": {},
  "ISSN": [
    "0003-6951",
    "1077-3118"
  ],
  "subject": [],
  "published-other": {
    "date-parts": [
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        2014,
        9,
        8
      ]
    ]
  },
  "published": {
    "date-parts": [
      [
        2014,
        9,
        8
      ]
    ]
  },
  "article-number": "103902"
}