Infrared studies of the (1-x) PbTe - (x) PbSnS 2 system

Thomas C. Hasapis*, Steven N. Girard, Euripides Hatzikraniotis, Konstantinos M. Paraskevopoulos, Mercouri Kanatzidis

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


In this work we report on the infrared properties of the thermoelectric (1-x)PbTe-xPbSnS 2system with x=0.03, 0.06, 0.11 and 0.33. The results obtained by the analysis of the reflectivity spectra are discussed together with the structural and morphological characteristics obtained by XRD and SEM-EDS measurements. The system was found macroscopically homogeneous for x=0.03 and x=0.06 and phase separated for x=0.11 and x=0.33. The analyzed ∼150cm -1 PbS impurity mode demonstrated a composition close to the PbTe 0.98S 0.02 for the major phase. The incorporation of PbSnS 2 causes a reduction in plasma frequency (decrease in carrier frequency concentration) and an increase in carrier mobility.

Original languageEnglish (US)
Title of host publicationEnergy Harvesting - Recent Advances in Materials, Devices and Applications
Number of pages6
StatePublished - Jan 1 2012
Event2011 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 25 2011Apr 29 2011


Other2011 MRS Spring Meeting
Country/TerritoryUnited States
CitySan Francisco, CA

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials


Dive into the research topics of 'Infrared studies of the (1-x) PbTe - (x) PbSnS 2 system'. Together they form a unique fingerprint.

Cite this