K. Kurosaki, A. Kosuga, K. Goto
Aug 20, 2006
Citations
0
Influential Citations
9
Citations
Journal
Materials Transactions
Abstract
The ternary silver thallium telluride, Ag 9 TlTe 5 , was reported to exhibit an excellent thermoelectric performance because of its extremely low thermal conductivity. We have studied the effect of the compositional difference on thermoelectric properties of Ag 9 TlTe 5 by measuring the thermoelectric data on polycrystalline samples with three compositions. A minimal compositional deviation from the stoichiometric Ag 9 TlTe 5 improved the power factor while the thermal conductivity remained extremely low, leading to an enhancement of the thermoelectric figure of merit.