Synthesis and Thermoelectric Properties of Yb-doped Ca0.9-xYbxLa0.1MnO3 Ceramics
Zhang, Bo; Chang, Aimin; Zhao, Qing; Ye, Haitao; Wu, Yiquan
2014
Source PublicationJournal of Electronic Materials
ISSN0361-5235
Volume43Issue:11Pages:4048-4055
Abstract

The microstructure and thermoelectric properties of Yb-doped Ca0.9-x Yb x La0.1 MnO3 (0 ≤ x ≤ 0.05) ceramics prepared by using the Pechini method derived powders have been investigated. X-ray diffraction analysis has shown that all samples exhibit single phase with orthorhombic perovskite structure. All ceramic samples possess high relative densities, ranging from 97.04% to 98.65%. The Seebeck coefficient is negative, indicating n-type conduction in all samples. The substitution of Yb for Ca leads to a marked decrease in the electrical resistivity, along with a moderate decrease in the absolute value of the Seebeck coefficient. The highest power factor is obtained for the sample with x = 0.05. The electrical conduction in these compounds is due to electrons hopping between Mn3+ and Mn4+, which is enhanced by increasing Yb content.

KeywordManganites Pechini Method Power Factor Electrical Conduction
DOI10.1007/s11664-014-3326-8
Indexed BySCI
WOS IDWOS:000342494800023
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/3733
Collection中国科学院特殊环境功能材料与器件重点试验室
材料物理与化学研究室
Corresponding AuthorChang, Aimin
Affiliation1.Alfred Univ, Kazuo Inamori Sch Engn, New York State Coll Ceram, Alfred, NY 14802 USA
2.Chinese Acad Sci, Xinjiang Key Lab Elect Informat Mat & Devices, Key Lab Funct Mat & Devices Special Environm, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Aston Univ, Sch Engn & Appl Sci, Birmingham B4 7ET, W Midlands, England
Recommended Citation
GB/T 7714
Zhang, Bo,Chang, Aimin,Zhao, Qing,et al. Synthesis and Thermoelectric Properties of Yb-doped Ca0.9-xYbxLa0.1MnO3 Ceramics[J]. Journal of Electronic Materials,2014,43(11):4048-4055.
APA Zhang, Bo,Chang, Aimin,Zhao, Qing,Ye, Haitao,&Wu, Yiquan.(2014).Synthesis and Thermoelectric Properties of Yb-doped Ca0.9-xYbxLa0.1MnO3 Ceramics.Journal of Electronic Materials,43(11),4048-4055.
MLA Zhang, Bo,et al."Synthesis and Thermoelectric Properties of Yb-doped Ca0.9-xYbxLa0.1MnO3 Ceramics".Journal of Electronic Materials 43.11(2014):4048-4055.
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