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题名: Synthesis and Thermoelectric Properties of Yb-doped Ca0.9-xYbxLa0.1MnO3 Ceramics
作者: Zhang, Bo; Chang, Aimin; Zhao, Qing; Ye, Haitao; Wu, Yiquan
通讯作者: Chang, Aimin
关键词: Manganites ; Pechini method ; power factor ; electrical conduction
刊名: Journal of Electronic Materials
发表日期: 2014
DOI: 10.1007/s11664-014-3326-8
卷: 43, 期:11, 页:4048-4055
收录类别: SCI
摘要: 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.
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内容类型: 期刊论文
URI标识: http://ir.xjipc.cas.cn/handle/365002/3733
Appears in Collections:中国科学院特殊环境功能材料与器件重点试验室_期刊论文

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作者单位: Alfred Univ, Kazuo Inamori Sch Engn, New York State Coll Ceram, Alfred, NY 14802 USA;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;Univ Chinese Acad Sci, Beijing 100049, Peoples R China;Aston Univ, Sch Engn & Appl Sci, Birmingham B4 7ET, W Midlands, England

Recommended Citation:
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.
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文件名: Synthesis and Thermoelectric Properties of Yb-doped Ca0.9-xYbxLa0.1MnO3 Ceramics.pdf
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