Novel Janus 2H-Tl2SSe Monolayer with Ultralow Lattice Thermal Conductivity and Outstanding Thermoelectric Performance
Lei Yang,
Yu-Lu Wan,
Cui-E Hu
et al.
Abstract:Understanding the lattice dynamics from the perspective of chemical bonds and phonon transport is essential for finding and designing high-efficiency thermoelectric (TE) materials and achieving applications. In this work, we have constructed a novel two-dimensional (2D) Janus 2H-Tl 2 SSe from a 2D 2H-TlS monolayer for the first time. The intrinsic low lattice thermal conductivity of the Janus 2H-Tl 2 SSe monolayer is attributed to the coexistence of weak chemical bonding and strong phonon anharmonicity, combin… Show more
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