Efficient room temperature thermoelectric characteristics of Ca(3-x)Ag(x)Co(4)O(9+delta)/Ag(y) composites

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	Efficient room temperature thermoelectric characteristics of Ca(3-x)Ag(x)Co(4)O(9+delta)/Ag(y) composites
	Y. Wang; Y. Sui; J. G. Cheng; X. J. Wang; W. H. Su
	2008
发表期刊	Journal of Physics D-Applied Physics
ISSN	0022-3727
卷号	41 期号:4
摘要	We report measurements of electrical resistivity, thermopower and thermal conductivity for a series of high-textured Ag-doped and Ag-added Ca(3)Co(4)O(9+delta) ceramic specimens. The results show that variable range hopping transport behaviour of the system transforms from two-dimensional to quasi-three-dimensional with Ag addition, which is isotropic to a certain extent. The thermoelectric (TE) performance of Ca(3)Co(4)O(9+delta) is improved effectively by Ag(+) doping or/and Ag addition. The Ca(2.7)Ag(0.3)Co(4)O(9+delta)/Ag(0.3) composite exhibits quite a respectable room temperature ZT value of 0.1, suggesting that such a composite is a promising candidate for p-type room temperature TE cooling application.
部门归属	[wang, yang; sui, yu; cheng, jinguang; wang, xianjie; su, wenhui] harbin inst technol, dept phys, ccmst, harbin 150001, peoples r china. [sui, yu; su, wenhui] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;sui, y (reprint author), harbin inst technol, dept phys, ccmst, harbin 150001, peoples r china;suiyu@hit.edu.cn
关键词	Performance Ca3co4o9 Alloys Antimonides Crystal
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33159
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Wang,Y. Sui,J. G. Cheng,et al. Efficient room temperature thermoelectric characteristics of Ca(3-x)Ag(x)Co(4)O(9+delta)/Ag(y) composites[J]. Journal of Physics D-Applied Physics,2008,41(4).
APA	Y. Wang,Y. Sui,J. G. Cheng,X. J. Wang,&W. H. Su.(2008).Efficient room temperature thermoelectric characteristics of Ca(3-x)Ag(x)Co(4)O(9+delta)/Ag(y) composites.Journal of Physics D-Applied Physics,41(4).
MLA	Y. Wang,et al."Efficient room temperature thermoelectric characteristics of Ca(3-x)Ag(x)Co(4)O(9+delta)/Ag(y) composites".Journal of Physics D-Applied Physics 41.4(2008).