Phonon thermal conductivity of monolayer MoS<sub>2</sub> sheet and nanoribbons

Liu, Xiangjun; Zhang, Gang; Pei, Qing‐Xiang; Zhang, Yong‐Wei

doi:10.1063/1.4823509

Cited by 183 publications

(152 citation statements)

References 49 publications

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“…More recently, the size dependence of the thermal conductivity in SLMoS 2 was studied with MD simulations. The value obtained was below 2.0 W·m −1 ·K −1 for a system with a length shorter than 120.0 nm [155].…”

Section: Thermal Conductivitymentioning

confidence: 99%

Graphene versus MoS2: A short review

Jiang

2015

Front. Phys.

183

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Graphene and MoS 2 are two well-known quasi two-dimensional materials. This review presents a comparative survey of the complementary lattice dynamical and mechanical properties of graphene and MoS 2 , which facilitates the study of graphene/MoS 2 heterostructures. These hybrid heterostructures are expected to mitigate the negative properties of each individual constituent and have attracted intense academic and industrial research interest.

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Section: Thermal Conductivitymentioning

confidence: 99%

Graphene versus MoS2: A short review

Jiang

2015

Front. Phys.

183

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“…More details about MD approach for heat conduction can be found elsewhere [132]. MD simulations have been widely used to study the thermal transport in two-dimensional materials from various aspects, such as the length dependent thermal conductivity in suspended SLG [11], the thickness dependent thermal conductivity in suspended [133] and supported [124] few-layer graphene (FLG), the c-axis thermal conductivity in intrinsic [134,135] and strained [34] graphene, interfacial thermal transport across graphene-water interface [136], the effect of vacancy [131] and isotopic [137] defect, thermal rectification effect [138,139], thermal conductivity of monolayer molybdenum disulfide (MoS 2 ) [140] and graphene-carbon nanotube hybrid [141]. …”

Section: Molecular Dynamics Simulationsmentioning

confidence: 99%

Phonon thermal conduction in novel 2D materials

Chen

2016

J. Phys.: Condens. Matter

102

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Recently, there have been increasing interests in phonon thermal transport in low dimensional materials, due to the crucial importance for dissipating and managing heat in micro and nano electronic devices. Significant progresses have been achieved for one-dimensional (1D) systems both theoretically and experimentally. However, the study of heat conduction in two-dimensional (2D) systems is still in its infancy due to the limited availability of 2D materials and the technical challenges in fabricating suspended samples suitable for thermal measurements. In this review, we outline different experimental techniques and theoretical approaches for phonon thermal transport in 2D materials, discuss the problems and challenges in phonon thermal transport measurements and provide comparison between existing experimental data. Special focus will be given to the effects of the size, dimensionality, anisotropy and mode contributions in the novel 2D systems including graphene, boron nitride, MoS 2 , black phosphorous, silicene etc.

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“…However, calculations by Liu et al show that singlelayer MoS 2 has a very short intrinsic phonon mean free path, resulting in a remarkably low thermal conductivity of 1.35 W/mK. 21 Thus, despite the low power factor, MoS 2 holds great promise as high-performance 2D thermoelectric material.…”

mentioning

confidence: 99%

“…However, the electric conductivity, and hence the power factor, might be significantly increased by a high-k dielectric passivation as shown in recent works. 4,23 Together with the low thermal conductivity of single-layer MoS 2 , 21 zT might therefore show superior high values.…”

mentioning

confidence: 99%

Electric field modulation of thermovoltage in single-layer MoS2

Dobusch

Furchi

Pospischil

et al. 2014

Applied Physics Letters

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We study electric field modulation of the thermovoltage in single-layer MoS2. The Seebeck coefficient generally increases for a diminishing free carrier concentration, and in the case of single-layer MoS2 reaches considerable large values of about S = −5160 μV/K at a resistivity of 490 Ω m. Further, we observe time dependent degradation of the conductivity in single layer MoS2, resulting in variations of the Seebeck coefficient. The degradation is attributable to adsorbates from ambient air, acting as p-dopants and additional Coulomb potentials, resulting in carrier scattering increase, and thus decrease of the electron mobility. The corresponding power factors remain at moderate levels, due to the low conductivity of single layer MoS2. However, as single-layer MoS2 has a short intrinsic phonon mean free path, resulting in low thermal conductivity, MoS2 holds great promise as high-performance 2D thermoelectric material.

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Phonon thermal conductivity of monolayer MoS₂ sheet and nanoribbons

Cited by 183 publications

References 49 publications

Graphene versus MoS2: A short review

Graphene versus MoS2: A short review

Phonon thermal conduction in novel 2D materials

Electric field modulation of thermovoltage in single-layer MoS2

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Phonon thermal conductivity of monolayer MoS2 sheet and nanoribbons

Cited by 183 publications

References 49 publications

Graphene versus MoS2: A short review

Graphene versus MoS2: A short review

Phonon thermal conduction in novel 2D materials

Electric field modulation of thermovoltage in single-layer MoS2

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Product

Resources

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Phonon thermal conductivity of monolayer MoS₂ sheet and nanoribbons