The microstructure and thermoelectric properties of the Mg-2(Sn,Si,Bi) films containing excess metal Mg phase

doi:10.1016/j.tsf.2020.138322

IMR OpenIR

	The microstructure and thermoelectric properties of the Mg-2(Sn,Si,Bi) films containing excess metal Mg phase
	Song, Gui-hong; Li, Gui-peng; Li, Xiu-yu; Du, Hao; Hu, Fang; Yin, Lisong
	2020-11-01
Source Publication	THIN SOLID FILMS
Volume	713
Abstract	To avoid the uncontrollable Mg content in deposited films caused by the easy evaporation of Mg in alloy target, the Mg-2(Sn,Si,Bi) solid solutions films with a tiny of excess Mg metal phase were prepared using a Mg-Sn-Si-Bi alloy target and a high pure Mg target by magnetron sputtering alternately. The phase components, microstructures as well as the thermoelectric properties were systematically investigated. The excess metal Mg phase with a few micron size uniformly distributes in the Mg-2(Sn,Si,Bi) solid solution films and the size of the excess metal Mg phase becomes bigger and bigger and the phase gradually convert a narrow strip shape as Mg target sputtering time increase from 40 to 60 s. It is beneficial to an increase in both Seebeck coefficient and electrical conductivity that a tiny excess metal Mg phase exists in Mg-2(Sn,Si) based films. The Mg-2(Sn,Si) based films containing tiny excess metal Mg phase with an appropriate size posses the highest absolute value of Seebeck coefficient and appropriate electrical conductivity, resulting in the maximum power factor.
DOI	10.1016/j.tsf.2020.138322
WOS ID	WOS:000580899700004
Citation statistics
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/82396
Collection	中国科学院金属研究所
Recommended Citation GB/T 7714	Song, Gui-hong,Li, Gui-peng,Li, Xiu-yu,et al. The microstructure and thermoelectric properties of the Mg-2(Sn,Si,Bi) films containing excess metal Mg phase[J]. THIN SOLID FILMS,2020,713.
APA	Song, Gui-hong,Li, Gui-peng,Li, Xiu-yu,Du, Hao,Hu, Fang,&Yin, Lisong.(2020).The microstructure and thermoelectric properties of the Mg-2(Sn,Si,Bi) films containing excess metal Mg phase.THIN SOLID FILMS,713.
MLA	Song, Gui-hong,et al."The microstructure and thermoelectric properties of the Mg-2(Sn,Si,Bi) films containing excess metal Mg phase".THIN SOLID FILMS 713(2020).

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