TY - JOUR
T1 - Synthesis and thermoelectric properties of tin-filled skutterudite, SnxCo4Sb12
AU - Takizawa, Hirotsugu
AU - Ito, Masayuki
AU - Uheda, Kyota
AU - Endo, Tadashi
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2000
Y1 - 2000
N2 - Tin atoms were inserted into the skutterudite-type CoSb3 host lattice under high pressure and temperature conditions. It was found that Sn atoms could be inserted into the body-centered vacant site, resulting in the formation of new filled (or partially filled) skutterudites, SnxCo4Sb12. The degree of insertion (x) increases with increasing applied pressure, and the vacant sites of the CoSb3 host lattice is fully occupied by Sn atoms when the reaction is carried out at 8 GPa and at 550°C. X-ray Rietveld refinement revealed that the inserted Sn atom showed an anomalously large isotropic atomic displacement parameter, indicating a large thermal vibration amplitude at the body-centered position. The Sn-filled skutterudites exhibit n-type semiconducting behaviour indicating that Sn filling causes the formation of a donor level.
AB - Tin atoms were inserted into the skutterudite-type CoSb3 host lattice under high pressure and temperature conditions. It was found that Sn atoms could be inserted into the body-centered vacant site, resulting in the formation of new filled (or partially filled) skutterudites, SnxCo4Sb12. The degree of insertion (x) increases with increasing applied pressure, and the vacant sites of the CoSb3 host lattice is fully occupied by Sn atoms when the reaction is carried out at 8 GPa and at 550°C. X-ray Rietveld refinement revealed that the inserted Sn atom showed an anomalously large isotropic atomic displacement parameter, indicating a large thermal vibration amplitude at the body-centered position. The Sn-filled skutterudites exhibit n-type semiconducting behaviour indicating that Sn filling causes the formation of a donor level.
KW - Atom insertion
KW - High pressure
KW - Skutterudite
KW - Stutcture refinement
KW - Thermoelectric properties
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U2 - 10.2109/jcersj.108.1258_530
DO - 10.2109/jcersj.108.1258_530
M3 - Article
AN - SCOPUS:0033704122
VL - 108
SP - 530
EP - 534
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 6
ER -