Category: Transient Plane Source
Author(s): Chia-Jyi Liu, Hsin -Chang Lai, Liang-Ru Chen, Yen-Liang Liu
Keywords: eds, energy dispersive spectroscopy, energy dispersive spectroscopy (eds), figure of merit, figure of merit (zt), hydrothermal methods, icp-aes, inductively coupled plasma-atomic emission spectrometer, inductively coupled plasma-atomic emission spectrometer (icp-aes), materials, nanovoltmeter, scanning electron microscopy, scanning electron microscopy (sem), seebeck voltage, sem, te, tem, thermal conductivity, thermoelectric, thermoelectric (te) materials, transmission electron microscopy, transmission electron microscopy (tem), van der pauw method, x-ray diffraction, x-ray diffraction (xrd), xrd, zt
Abstract: A series of Bi(2-x)Sb(x)Te3 powders were prepared via hydrothermal methods by varying x (x=1.45, 1.50, 1.55, 1.56). These powders were then heavily characterized by XRD, EDS, ICP-AES, TEM, SEM and the TPS technique. A low thermal conductivity was desired, so as to give the highest thermoelectric figure of merit (ZT). It was determined that the highest figure of merit was obtained when x=1.55, which resulted in a value of 1.65 at 290 K.
Reference: Journal of Materials Chemistry, 22, 11 (2012) 4825-4831
DOI: 10.1039/C2JM15185E