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 |
|---|---|
| Title of host publication | Materials Research Society Symposium Proceedings |
| Pages | 143-148 |
| Number of pages | 6 |
| Volume | 1325 |
| DOIs | |
| Publication status | Published - 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 | United States |
| City | San Francisco, CA |
| Period | 4/25/11 → 4/29/11 |
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ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanical Engineering
- Mechanics of Materials
Cite this
Infrared studies of the (1-x) PbTe - (x) PbSnS 2 system. / Hasapis, Thomas C.; Girard, Steven N.; Hatzikraniotis, Euripides; Paraskevopoulos, Konstantinos M.; Kanatzidis, Mercouri G.
Materials Research Society Symposium Proceedings. Vol. 1325 2012. p. 143-148.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Infrared studies of the (1-x) PbTe - (x) PbSnS 2 system
AU - Hasapis, Thomas C.
AU - Girard, Steven N.
AU - Hatzikraniotis, Euripides
AU - Paraskevopoulos, Konstantinos M.
AU - Kanatzidis, Mercouri G
PY - 2012
Y1 - 2012
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.
UR - http://www.scopus.com/inward/record.url?scp=84055211952&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84055211952&partnerID=8YFLogxK
U2 - 10.1557/opl.2011.848
DO - 10.1557/opl.2011.848
M3 - Conference contribution
AN - SCOPUS:84055211952
SN - 9781605113029
VL - 1325
SP - 143
EP - 148
BT - Materials Research Society Symposium Proceedings
ER -