Synthesis of large single crystals and thermoelectrical properties of the type-I clathrate K8Zn4Sn42
Synthesis of large single crystals and thermoelectrical properties of the type-I clathrate K8Zn4Sn42
复制标题
I型包合物K8Zn4Sn42大单晶的合成及热电性能
DOI:
10.1002/zaac.201300383
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
T. F. Fässler
中科院分区:
文献类型:
--
作者:
V. Baran;A. Fischer;W. Scherer;T. F. Fässler
In order to investigate the thermoelectric transport properties of tin‐based clathrates, highly dense samples are required. Since tin clathrates decompose at temperatures above 550° C, compacting of samples by hot pressing without the formation of side products is not possible. Large single crystals of the composition K8Zn4Sn42 suitable for physical property measurements can be obtained using the tin liquid metal flux technique. A single crystal structure determination of K8Zn4Sn42 (Pm ̄3 n, a= 12.07164 (2) Å) shows Zn/Sn mixed occupancy at the 6c position. According to physical property measurements, K8Zn4Sn42 is a promising semimetallic thermoelectric material.
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