Thermoelectric Properties of Ce0.09Fe0.67Co3.33Sb12/FeSb2Te Multi-Layered Structures

Abstract

Thermoelectric properties of Ce 0.09 Fe 0.67 Co 3.33 Sb 12 /FeSb 2.1 Te multi-layered structures with period of 5 nm were studied in temperature ranging from 300 K to 500 K. Structures were prepared by Pulsed Laser Deposition (PLD) on fused silica quartz glass substrates at the substrate temperature during the deposition Ts = 230˚C and Ts = 250˚C with the laser beam energy density Ds = 3 Jcm −2 . In the contribution temperature dependencies of the in-plane electrical conductivity, the Seebeck coefficient and the resultant power factor together with room temperature value of thermoelectric figure of merit are presented.