Thermal conductivity of monolayer MoS₂, MoSe₂, and WS₂: interplay of mass effect, interatomic bonding and anharmonicity

Abstract

Our work shows that the thermal conductivity<italic>κ</italic>of MoS₂is largest among the three materials (Fig. a and b) due to largest Debye temperature. WS₂has stronger bonding (Fig. e) and lower anharmonicity (Fig. h), leading to a much larger<italic>κ</italic>compared to MoSe₂.