Room Temperature Thermoelectric Properties of Isostructural Selenides Ta2PdS6 and Ta2PdSe6

Abstract

We have measured thermoelectric properties of Ta2PdX6 (X=S, Se) around room temperature using single crystal samples. We find that the power factor of Ta2PdX6 is relatively high from middle-low to room temperatures, and notably Ta2PdSe6 shows the largest power factor among thermoelectric materials with an electrical conductivity of 10-2 Ωcm at 300 K. Ta2PdS6 will be a possible candidate for a Peltier cooling material if the lattice thermal conductivity is reduced by chemical substitution.

References in corpus (8)

• Superconductivity in Cu_xTiSe_2
• Experimental Realization of Type-II Dirac Fermions in PdTe${}_2$ Superconductor
• The structures and thermoelectric properties of the infinitely adaptive series (Bi2)m(Bi2Te3)n
• Orthorhombic-to-Monoclinic Phase Transition of Ta2NiSe5 Induced by the Bose-Einstein Condensation of Excitons
• Electron-Phonon Coupling Mode in Excitonic Insulator
• Large Thermoelectric Power Factor at Low Temperatures in One-Dimensional Telluride Ta4SiTe4
• Hole-Doped M4SiTe4 (M = Ta, Nb) as an Efficient p-Type Thermoelectric Material for Low-Temperature Applications
• Large Thermoelectric Power Factor in One-Dimensional Telluride Nb4SiTe4 and Substituted Compounds

Cited by in corpus (4)

• Pressure-induced superconductivity in quasi-one-dimensional semimetal ${\mathrm{Ta}}_2{\mathrm{PdSe}}_6$
• Anisotropic Optical Conductivity Accompanied by a Small Energy Gap in One-Dimensional Thermoelectric Telluride Ta4SiTe4
• Band-selective Plasmonic Polaron in Thermoelectric Semimetal Ta${}_2$PdSe${}_6$ with ultra-high power factor
• Valley-dependent electron-phonon scattering in thermoelectric semimetal Ta${}_2$PdSe${}_6$