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

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

doi:10.1557/opl.2011.848

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

Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

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 language	English (US)
Title of host publication	Energy Harvesting - Recent Advances in Materials, Devices and Applications
Pages	143-148
Number of pages	6
Volume	1325
DOIs	https://doi.org/10.1557/opl.2011.848
State	Published - Jan 1 2012
Event	2011 MRS Spring Meeting - San Francisco, CA, United States Duration: Apr 25 2011 → Apr 29 2011

Other

Other	2011 MRS Spring Meeting
Country/Territory	United States
City	San Francisco, CA
Period	4/25/11 → 4/29/11

ASJC Scopus subject areas

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

Access to Document

10.1557/opl.2011.848

Cite this

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title = "Infrared studies of the (1-x) PbTe - (x) PbSnS 2 system",

abstract = "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.",

author = "Hasapis, {Thomas C.} and Girard, {Steven N.} and Euripides Hatzikraniotis and Paraskevopoulos, {Konstantinos M.} and Mercouri Kanatzidis",

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AU - Hasapis, Thomas C.

AU - Girard, Steven N.

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AU - Paraskevopoulos, Konstantinos M.

AU - Kanatzidis, Mercouri

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N2 - 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.

AB - 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.

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