Thermoelectric performance of MoSi<sub>2</sub>As<sub>4</sub>monolayer
Yuhong Huang, Xuanhong Zhong, Hongkuan Yuan, Hong Chen
Abstract
Abstract Thermoelectric performance of MoSi 2 As 4 monolayer is investigated using density functional theory combined with Boltzmann transport theory. The maximal power factors of n- and p-type by the PBE (HSE06) functional are 7.73 (48.31) and 32.84 at the temperature of 1200 K, respectively. The lattice thermal conductivity is less than above 800 K. The thermoelectric figure of merit can reach 0.33 (0.58) and 0.90 (0.81) using the PBE (HSE06) functional for n- and p-type under appropriate carrier concentration at 1200 K, respectively. Thus, the p-type MoSi 2 As 4 monolayer is predicted to be a potential candidate for high-temperature thermoelectric applications.
Topics & Concepts
Thermoelectric effectMonolayerDensity functional theoryMaterials scienceFigure of meritBoltzmann constantThermoelectric materialsThermal conductivityCondensed matter physicsThermodynamicsNanotechnologyChemistryComputational chemistryOptoelectronicsPhysicsComposite materialAdvanced Thermoelectric Materials and Devices2D Materials and ApplicationsChalcogenide Semiconductor Thin Films