TY - JOUR
T1 - Thermoelectric properties of nanostructured (Pb1·mSn mTe)1-x (PbS)x with Pb and Sb precipitates.
AU - Girard, Steven N.
AU - Sootsman, Joseph R.
AU - Lin, Chia Her
AU - Androulakis, John
AU - Kanatzidis, Mercouri G.
PY - 2008
Y1 - 2008
N2 - We report the physical characterization and thermoelectric properties of (Pb0.95Sn0.05Te)0.92(PbS)0.08 containing excess Pb and Sb prepared using the matrix encapsulation technique. Samples of (Pb0.95Sn0.05Te)0.92(PbS) 0.08: Pb 0.5 - 4 at. % rapidly quenched from the melt show microscale Pb inclusions that increase the thermal conductivity while slightly increasing the power factor, compared to (Pb0.95Sn0.05Te) 0.92(PbS)0.08. Samples of (Pb0.95Sn 0.05Te)0.92(PbS)0.08:Pb 0.5%, Sb 2% prepared using the same technique show microscale Sb and Pb inclusions that upon heating cause rapid PbS and Sb segregation from the Pb Te matrix. This behavior significantly alters the microstructure and degrades the transport properties of the material.
AB - We report the physical characterization and thermoelectric properties of (Pb0.95Sn0.05Te)0.92(PbS)0.08 containing excess Pb and Sb prepared using the matrix encapsulation technique. Samples of (Pb0.95Sn0.05Te)0.92(PbS) 0.08: Pb 0.5 - 4 at. % rapidly quenched from the melt show microscale Pb inclusions that increase the thermal conductivity while slightly increasing the power factor, compared to (Pb0.95Sn0.05Te) 0.92(PbS)0.08. Samples of (Pb0.95Sn 0.05Te)0.92(PbS)0.08:Pb 0.5%, Sb 2% prepared using the same technique show microscale Sb and Pb inclusions that upon heating cause rapid PbS and Sb segregation from the Pb Te matrix. This behavior significantly alters the microstructure and degrades the transport properties of the material.
UR - http://www.scopus.com/inward/record.url?scp=54749093293&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=54749093293&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:54749093293
SN - 0272-9172
VL - 1044
SP - 101
EP - 106
JO - Materials Research Society Symposium Proceedings
JF - Materials Research Society Symposium Proceedings
T2 - Thermoelectric Power Generation
Y2 - 26 November 2007 through 29 November 2007
ER -