Synthesis and transport properties of Cu-excess Cu(Zn,Cd)2InTe4 quaternary chalcogenides

Dean Hobbis, Kaya Wei, Hsin Wang, George S. Nolas

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Polycrystalline quaternary chalcogenides with compositions Cu1.1Cd1.8In1.1Te4, Cu1.3Cd1.9In0.8Te4, Cu1.2Zn1.8InTe4 and Cu1.2Zn1.6In1.2Te4 were synthesized by reacting the constituent elements and subsequent solid state annealing followed by densification by hot-pressing in order to investigate the transport properties with varying compositions, and therefore carrier densities. The thermal conductivity of these compositions, as well as stoichiometric CuZn2InTe4 and CuCd2InTe4, are reported for the first time. In addition to the thermal conductivity, resistivity, Seebeck coefficient and compositional stability measurements are also discussed. These materials are p-type semiconductors with very low thermal conductivity values. The potential for improved thermoelectric performance is also discussed.

Original languageEnglish
Pages (from-to)543-546
Number of pages4
JournalJournal of Alloys and Compounds
Volume743
DOIs
StatePublished - Apr 30 2018

Keywords

  • Quaternary chalcogenides
  • Thermal conductivity
  • Thermoelectrics

Fingerprint

Dive into the research topics of 'Synthesis and transport properties of Cu-excess Cu(Zn,Cd)2InTe4 quaternary chalcogenides'. Together they form a unique fingerprint.

Cite this