title: High performance thermoelectric Tl9BiTe6 with an extremely low thermal conductivity.
abstract: Tl 9BiTe (6) exhibits a thermoelectric figure of merit of ZT approximately 1.2 around 500 K, which significantly exceeds the state-of-the-art materials in this temperature range. The extraordinary thermoelectric performance is mainly due to the extremely low thermal conductivity of Tl 9BiTe (6) [ 0.39 W/(m times K) at 300 K]. In fact, the minimum lifetime of the phonons has to be taken into account to describe the thermal conductivity data.
authors.affiliation: Bell Laboratories, Lucent Technologies, Mountain Avenue, Murray Hill, New Jersey 07974, USA. woe@lucent.com
authors.forename: B
authors.initials: B
authors.lastname: Wölfing
authors.forename: C
authors.initials: C
authors.lastname: Kloc
authors.forename: J
authors.initials: J
authors.lastname: Teubner
authors.forename: E
authors.initials: E
authors.lastname: Bucher