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Dramatic thermal conductivity reduction by nanostructures for large increase in thermoelectric figure-of-merit of FeSb2
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10.1063/1.3651757
/content/aip/journal/apl/99/16/10.1063/1.3651757
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/16/10.1063/1.3651757
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Figures

Image of FIG. 1.
FIG. 1.

SEM images for nanostructured samples that were prepared with different conditions. (a) hot pressed at 400 °C using powders ball milled for 10 min, (b) hot pressed at 400 °C using powders ball milled for 1 h, (c) hot pressed at 400 °C using powders ball milled for 15 h, (d) hot pressed at 600 °C using powders ball milled for 15 h, (e) hot pressed at 300 °C using powders ball milled for 15 h, and (f) hot pressed at 200 °C using powders ball milled for 15 h.

Image of FIG. 2.
FIG. 2.

TEM images for nanostructured sample S15hr-200C. (a) Lower magnification to show the average grain size and (b) higher magnification of the boxed area shown in (a) to show the crystalline orientation and defected boundaries.

Image of FIG. 3.
FIG. 3.

Thermoelectric properties for nanostructured samples: (a) temperature dependence of thermal conductivity, fittings was applied to sample S10min-400C and S15hr-200C. Two solid curves correspond to thermal conductivity from single crystal samples (Ref. 5 ); (b) temperature dependence of resistivity; (c) temperature dependence of Seebeck coefficient, the insets indicate the temperature dependent carrier concentration and Hall mobility for S15hr-600C and S15hr-300C, respectively; (d) temperature dependence of .

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/content/aip/journal/apl/99/16/10.1063/1.3651757
2011-10-17
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Dramatic thermal conductivity reduction by nanostructures for large increase in thermoelectric figure-of-merit of FeSb2
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/16/10.1063/1.3651757
10.1063/1.3651757
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