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 - 2012/1/1
Y1 - 2012/1/1
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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U2 - 10.1557/opl.2011.848
DO - 10.1557/opl.2011.848
M3 - Conference contribution
AN - SCOPUS:84055211952
SN - 9781605113029
T3 - Materials Research Society Symposium Proceedings
SP - 143
EP - 148
BT - Energy Harvesting - Recent Advances in Materials, Devices and Applications
T2 - 2011 MRS Spring Meeting
Y2 - 25 April 2011 through 29 April 2011
ER -