Mechanism of the low thermal conductivity in novel two-dimensional NaCuSe

First-principles prediction of the thermal conductivity of two configurations of difluorinated graphene monolayer

“…73 Consequently, higher Debye temperatures imply that fewer phonons are activated at room temperature, leading to reduced phonon population and scattering rates. [73][74][75]…”

Super-high carrier mobilities and excellent thermoelectric performances of Tri–Tri group-VA monolayers

“…In the case of two-dimensional (2D) materials, however, their strong quantum confinement effect 7 has great potential to break those complex relationships. Meanwhile, 2D thermoelectric materials have intrinsically low thermal conductivities [8][9][10] and high mechanical flexibility, making them versatile in green energy harvesting and thermoelectric refrigeration.…”

The effect of four-phonon interaction on phonon thermal conductivity of hexagonal VTe2and puckered pentagonal VTe2

“…This can be achieved by modifying the structural properties of a material via mechanical strain, [11][12][13] native point defects, 14 superlattices, 15,16 rattling atoms 17 or dimensional reduction. [18][19][20] Due to the quantum confinement effect of two-dimensional (2D) materials, the power factor of the TE materials can be improved significantly, as well as the interfaces and surfaces appear in 2D structures, which enable facilitating the enhancement of phonon scattering mechanisms and reducing k L . Therefore, it is essential to explore and develop novel 2D materials with inherently low lattice thermal conductivity.…”