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           Scientists Create Highly Efficient Thermoelectric Material

   Scientists at Northwestern University say they have found a better way
   to turn waste heat into electricity by improving "thermoelectric"
   devices.
   Until now, thermoelectrics were too inefficient or expensive for
   widespread use.
   According to a report in the latest issue of the journal Nature, a
   material called tin selenide has an unusual combination of properties
   that make it particularly good at converting heat into electric
   current. Tin selenide is a good conductor of electricity but a poor
   conductor of heat.
   Scientists say the new device could be a step toward making a more
   efficient hybrid car that would use fuel to directly create electricity
   rather than the less-efficient current process of running a gasoline
   motor to power a generator.
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   [1]http://www.voanews.com/content/scientists-create-highly-efficient-th
   ermoelectric-material/1895867.html

References

   1. http://www.voanews.com/content/scientists-create-highly-efficient-thermoelectric-material/1895867.html