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Enhanced thermoelectric properties in p-type Bi0.4Sb1.6Te3alloy by combining incorporation and doping using multi-scale CuAlO2particles
Song, Zijun1,2; Zhang, Qihao3,4; Liu, Yuan1,2; Zhou, Zhenxing1,2; Lu, Xiaofang1,2; Wang, Lianjun1,2; Jiang, Wan1,2,5; Chen, Lidong3
2017
Source PublicationPhysica Status Solidi (A) Applications and Materials Science
ISSN18626300
Volume214Issue:1
AbstractMulti-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
DOI10.1002/pssa.201600451
EI Accession Number20163802814215
EI KeywordsAluminum alloys
EI Classification Number541.2 Aluminum Alloys - 544.1 Copper - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 615.4 Thermoelectric Energy - 641.1 Thermodynamics - 701.1 Electricity: Basic Concepts and Phenomena - 933.1.1 Crystal Lattice
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25806
Collection中国科学院上海硅酸盐研究所
Affiliation1.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
Recommended Citation
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).
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