Enhanced thermoelectric properties in p-type Bi0.4Sb1.6Te3alloy by combining incorporation and doping using multi-scale CuAlO2particles

doi:10.1002/pssa.201600451

	Enhanced thermoelectric properties in p-type Bi0.4Sb1.6Te3alloy by combining incorporation and doping using multi-scale CuAlO2particles
	Song, Zijun 1,2; Zhang, Qihao 3,4; Liu, Yuan 1,2; Zhou, Zhenxing 1,2; Lu, Xiaofang 1,2; Wang, Lianjun 1,2; Jiang, Wan 1,2,5; Chen, Lidong 3
刊名	Physica Status Solidi (A) Applications and Materials Science
	2017
卷号	214 期号:1
ISSN号	18626300
DOI	10.1002/pssa.201600451
英文摘要	Multi-scale CuAlO2particles are introduced into the Bi0.4Sb1.6Te3matrix to synergistically optimize the electrical conductivity, Seebeck coefficient, and the lattice thermal conductivity. Cu element originating from fine CuAlO2grains diffuses into the Bi0.4Sb1.6Te3matrix and tunes the carrier concentration while the coarse CuAlO2particles survive as the second phase within the matrix. The power factor is improved at the whole temperatures range due to the low-energy electron filtering effect on Seebeck coefficient and enhanced electrical transport property by mild Cu doping. Meanwhile, the remaining CuAlO2inclusions give rise to more boundaries and newly built interfaces scattering of heat-carrying phonons, resulting in the reduced lattice thermal conductivity. Consequently, the maximum ZT is found to be enhanced by 150% arising from the multi-scale microstructure regulation when the CuAlO2content reaches 0.6 vol.%. Not only that, but the ZT curves get flat in the whole temperature range after introducing the multi-scale CuAlO2particles, which leads to a remarkable increase in the average ZT. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25806]
专题	中国科学院上海硅酸盐研究所
作者单位	1.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai; 201620, China; 2.Institute of Functional Materials, Donghua University, Shanghai; 201620, China; 3.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China; 4.University of Chinese Academy of Sciences, Beijing; 100049, China; 5.School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen; 333000, China
推荐引用方式 GB/T 7714	Song, Zijun,Zhang, Qihao,Liu, Yuan,et al. Enhanced thermoelectric properties in p-type Bi0.4Sb1.6Te3alloy by combining incorporation and doping using multi-scale CuAlO2particles[J]. Physica Status Solidi (A) Applications and Materials Science,2017,214(1).
APA	Song, Zijun.,Zhang, Qihao.,Liu, Yuan.,Zhou, Zhenxing.,Lu, Xiaofang.,...&Chen, Lidong.(2017).Enhanced thermoelectric properties in p-type Bi0.4Sb1.6Te3alloy by combining incorporation and doping using multi-scale CuAlO2particles.Physica Status Solidi (A) Applications and Materials Science,214(1).
MLA	Song, Zijun,et al."Enhanced thermoelectric properties in p-type Bi0.4Sb1.6Te3alloy by combining incorporation and doping using multi-scale CuAlO2particles".Physica Status Solidi (A) Applications and Materials Science 214.1(2017).