Volume 91 Issue 30 | p. 29 | Concentrates
Issue Date: July 29, 2013

Clathrate Expands Thermoelectrics List

Novel Ba-Au-P host-guest compound exhibits unprecedentedly low thermal conductivity
Department: Science & Technology
News Channels: JACS In C&EN, Materials SCENE
Keywords: thermoelectric, thermoelectrics, thermal conductivity, clathrate

Despite decades of specialty applications, thermoelectrics, a field that encompasses a collection of temperature-control and power generation technologies, remains obscure. The applications, such as miniature coolers that chill infrared detectors in night-vision systems and climate-control automobile seats, are enabled by a limited number of semiconductors that exhibit an unusual combination of properties. The list includes having good electrical but poor thermal conductivity, as well as exhibiting an electrical response to a temperature gradient. A greater . . .

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