• DOI:10.1557/PROC-545-123
• Corpus ID: 96621064

Thermoelectric properties of the cubic family of compounds AgPbBiQ3 (Q = S, Se, Te). Very low thermal conductivity materials

@article{Sportouch1998ThermoelectricPO,
  title={Thermoelectric properties of the cubic family of compounds AgPbBiQ3 (Q = S, Se, Te). Very low thermal conductivity materials},
  author={Sandrine Sportouch and Marina Bastea and Paul W. Brazis and John R. Ireland and Carl R. Kannewurf and Ctirad Uher and Mercouri G. Kanatzidis},
  journal={MRS Proceedings},
  year={1998},
  volume={545},
  pages={123-130},
  url={https://api.semanticscholar.org/CorpusID:96621064}
}

• S. Sportouch, M. Bastea, +4 authors M. Kanatzidis
• Published 1998
• Materials Science, Physics
• MRS Proceedings

The AgPbBiQ 3 class of compounds and their solid solution members are related to the NaCl structure type, where Ag, Pb and Bi atoms are statistically disordered on the Na site and Q atoms occupy the Cl site. These compounds were synthesized by combining the elements in the appropriate ratio and heating under static vacuum at 900° C for 3 days. They are narrow gap semiconductors with band gaps in the range of 0.6 to 0.28 eV. The charge-transport properties were measured on ingots as a function… 

The AgPbBiQ 3 class of compounds and their solid solution members are related to the NaCl structure type, where Ag, Pb and Bi atoms are statistically disordered on the Na site and Q atoms occupy the Cl site. These compounds were synthesized by combining the elements in the appropriate ratio and heating under static vacuum at 900° C for 3 days. They are narrow gap semiconductors with band gaps in the range of 0.6 to 0.28 eV. The charge-transport properties were measured on ingots as a function of temperature. The compounds AgPbBiTe 3 , AgPbBiSe 3 , AgPbBiTe 2.75 Se 0.25 and AgPbBiTe 2 Se, undoped, possess an electrical conductivity in the range of 70 S/cm to 400 S/cm. These materials exhibit negative thermopower ranging from -40 μV/K to -160 μV/K at room temperature and thermal conductivity less than 1.30 W/mK.