Premium
Reinvestigation of the thermoelectric properties of Ag 8 GeTe 6
Author(s) -
Charoenphakdee Anek,
Kurosaki Ken,
Muta Hiroaki,
Uno Masayoshi,
Yamanaka Shinsuke
Publication year - 2008
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.200701302
Subject(s) - thermoelectric effect , crystallite , materials science , thermal conductivity , figure of merit , thermoelectric materials , hot pressing , solid state , analytical chemistry (journal) , electrical resistivity and conductivity , seebeck coefficient , condensed matter physics , mineralogy , metallurgy , chemistry , thermodynamics , composite material , optoelectronics , physics , chromatography , quantum mechanics
High‐density polycrystalline samples (above 98% of the theoretical density) of Ag 8 GeTe 6 were prepared by solid‐state reactions of Ag 2 Te, GeTe, and Te, followed by hot‐pressing. The thermoelectric properties were measured at temperatures ranging from room temperature to around 700 K. The thermal conductivity values were extremely low (0.25 Wm –1 K –1 at room temperature), and consequently Ag 8 GeTe 6 exhibited a relatively high thermoelectric figure of merit, ZT = 0.48 at 703 K. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom