Skip to main content
placeholder image

Origin of resistivity anomaly in p-type leads chalcogenide multiphase compounds

Journal Article


Download full-text (Open Access)

Abstract


  • The electrical resistivity curves for binary phase compounds of p-type lead chalcogenide (PbTe)(0.9−x) (PbSe) 0.1 (PbS) x, (x = 0.15, 0.2, 0.25), which contain PbS-rich secondary phases, show different behaviour on heating and cooling between 500-700 K. This is contrast to single phase compounds which exhibit similar behaviour on heating and cooling. We correlate these anomalies in the electrical resistivities of multiphase compounds to the variation in phase composition at high temperatures. The inhomogeneous distribution of dopants between the matrix and secondary phase is found to be crucial in the electronic transport properties of the multiphase compounds. These results can lead to further advances in designing composite Pb-chalcogenides with high thermoelectric performance.

Authors


  •   Aminorroaya-Yamini, Sima (external author)
  •   Mitchell, David R. G.
  •   Wang, Heng (external author)
  •   Gibbs, Zachary M. (external author)
  •   Pei, Yanzhong (external author)
  •   Dou, Shi Xue
  •   Snyder, G Jeffrey. (external author)

Publication Date


  • 2015

Citation


  • Aminorroaya Yamini, S., Mitchell, D. R. G., Wang, H., Gibbs, Z. M., Pei, Y., Dou, S. Xue. & Snyder, G. (2015). Origin of resistivity anomaly in p-type leads chalcogenide multiphase compounds. AIP Advances, 5 053601-1-053601-7.

Scopus Eid


  • 2-s2.0-84924056242

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2359&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1358

Has Global Citation Frequency


Start Page


  • 053601-1

End Page


  • 053601-7

Volume


  • 5

Place Of Publication


  • United States

Abstract


  • The electrical resistivity curves for binary phase compounds of p-type lead chalcogenide (PbTe)(0.9−x) (PbSe) 0.1 (PbS) x, (x = 0.15, 0.2, 0.25), which contain PbS-rich secondary phases, show different behaviour on heating and cooling between 500-700 K. This is contrast to single phase compounds which exhibit similar behaviour on heating and cooling. We correlate these anomalies in the electrical resistivities of multiphase compounds to the variation in phase composition at high temperatures. The inhomogeneous distribution of dopants between the matrix and secondary phase is found to be crucial in the electronic transport properties of the multiphase compounds. These results can lead to further advances in designing composite Pb-chalcogenides with high thermoelectric performance.

Authors


  •   Aminorroaya-Yamini, Sima (external author)
  •   Mitchell, David R. G.
  •   Wang, Heng (external author)
  •   Gibbs, Zachary M. (external author)
  •   Pei, Yanzhong (external author)
  •   Dou, Shi Xue
  •   Snyder, G Jeffrey. (external author)

Publication Date


  • 2015

Citation


  • Aminorroaya Yamini, S., Mitchell, D. R. G., Wang, H., Gibbs, Z. M., Pei, Y., Dou, S. Xue. & Snyder, G. (2015). Origin of resistivity anomaly in p-type leads chalcogenide multiphase compounds. AIP Advances, 5 053601-1-053601-7.

Scopus Eid


  • 2-s2.0-84924056242

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2359&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1358

Has Global Citation Frequency


Start Page


  • 053601-1

End Page


  • 053601-7

Volume


  • 5

Place Of Publication


  • United States