Skip to main content

Thermoelectric performance of n-Type (PbTe)0.75(PbS)0.15(PbSe)0.1 composites

Journal Article


Download full-text (Open Access)

Abstract


  • Lead chalcogenides (PbQ, Q = Te, Se, S) have proved to possess high thermoelectric efficiency for both n-type and p-type compounds. Recent success in tuning of electronic band structure, including manipulating the band gap, multiple bands, or introducing resonant states, has led to a significant improvement in the thermoelectric performance of p-type lead chalcogenides compared to the n-type ones. Here, the n-type quaternary composites of (PbTe)0.75(PbS)0.15(PbSe)0.1 are studied to evaluate the effects of nanostructuring on lattice thermal conductivity, carrier mobility, and effective mass variation. The results are compared with the similar ternary systems of (PbTe)1-x(PbSe)x, (PbSe) 1-x(PbS)x, and (PbS)1-x(PbTe)x. The reduction in the lattice thermal conductivity owing to phonon scattering at the defects and interfaces was found to be compensated by reduced carrier mobility. This results in a maximum figure of merit, zT, of ∼1.1 at 800 K similar to the performance of the single phase alloys of PbTe, PbSe, and (PbTe) 1-x(PbSe)x.

UOW Authors


  •   Aminorroaya-Yamini, Sima (external author)
  •   Wang, Heng (external author)
  •   Ginting, Dianta (external author)
  •   Mitchell, David
  •   Dou, Shi Xue
  •   Snyder, G Jeffrey. (external author)

Publication Date


  • 2014

Citation


  • Yamini, S. Aminorroaya., Wang, H., Ginting, D., Mitchell, D. R. G., Dou, S. Xue. & Snyder, G. Jeffrey. (2014). Thermoelectric performance of n-Type (PbTe)0.75(PbS)0.15(PbSe)0.1 composites. ACS Applied Materials and Interfaces, 6 (14), 11476-11483.

Scopus Eid


  • 2-s2.0-84905054451

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2173&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1172

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 11476

End Page


  • 11483

Volume


  • 6

Issue


  • 14

Place Of Publication


  • United States

Abstract


  • Lead chalcogenides (PbQ, Q = Te, Se, S) have proved to possess high thermoelectric efficiency for both n-type and p-type compounds. Recent success in tuning of electronic band structure, including manipulating the band gap, multiple bands, or introducing resonant states, has led to a significant improvement in the thermoelectric performance of p-type lead chalcogenides compared to the n-type ones. Here, the n-type quaternary composites of (PbTe)0.75(PbS)0.15(PbSe)0.1 are studied to evaluate the effects of nanostructuring on lattice thermal conductivity, carrier mobility, and effective mass variation. The results are compared with the similar ternary systems of (PbTe)1-x(PbSe)x, (PbSe) 1-x(PbS)x, and (PbS)1-x(PbTe)x. The reduction in the lattice thermal conductivity owing to phonon scattering at the defects and interfaces was found to be compensated by reduced carrier mobility. This results in a maximum figure of merit, zT, of ∼1.1 at 800 K similar to the performance of the single phase alloys of PbTe, PbSe, and (PbTe) 1-x(PbSe)x.

UOW Authors


  •   Aminorroaya-Yamini, Sima (external author)
  •   Wang, Heng (external author)
  •   Ginting, Dianta (external author)
  •   Mitchell, David
  •   Dou, Shi Xue
  •   Snyder, G Jeffrey. (external author)

Publication Date


  • 2014

Citation


  • Yamini, S. Aminorroaya., Wang, H., Ginting, D., Mitchell, D. R. G., Dou, S. Xue. & Snyder, G. Jeffrey. (2014). Thermoelectric performance of n-Type (PbTe)0.75(PbS)0.15(PbSe)0.1 composites. ACS Applied Materials and Interfaces, 6 (14), 11476-11483.

Scopus Eid


  • 2-s2.0-84905054451

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2173&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1172

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 11476

End Page


  • 11483

Volume


  • 6

Issue


  • 14

Place Of Publication


  • United States