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The Promise of Nanocomposite Thermoelectric Materials

  • Mildred Dresselhaus (a1), Gang Chen (a2), Zhifeng Ren (a3), Kenneth McEnaney (a4), G. Dresselhaus (a5) and Jean-Pierre Fleurial (a6)...

Abstract

The concept of using nanocomposite thermoelectric materials in bulk form for practical applications is presented. Laboratory studies have shown the possibilities of nanostructures to yield large reductions in the thermal conductivity while at the same time increasing the power factor. Theoretical studies have suggested that structural ordering in nano-systems is not necessary for the enhancement of ZT, leading to the idea of using nanocomposites as a practical scale-up technology for making bulk thermoelectric materials with enhanced ZT values. Specific examples are presented of nanocomposite thermoelectric materials developed by our group based on the familiar silicon germanium system, showing enhanced thermoelectric performance through nano-structuring.

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References

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Keywords

The Promise of Nanocomposite Thermoelectric Materials

  • Mildred Dresselhaus (a1), Gang Chen (a2), Zhifeng Ren (a3), Kenneth McEnaney (a4), G. Dresselhaus (a5) and Jean-Pierre Fleurial (a6)...

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