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    题名: Thermoelectric properties of n-type Ca1−xBixMn1−ySiyO3−δ (x = y = 0.00, 0.02, 0.03, 0.04, and 0.05) system
    作者: Ankam Bhaskara;Liu, Chia-Jyi;Yuan, J.J.;Chang, Ching-Lin
    贡献者: 淡江大學物理學系
    关键词: Thermoelectric materials;Oxygen defect;Manganate;Thermal conductivity
    日期: 2013-03
    上传时间: 2014-03-06 16:42:42 (UTC+8)
    出版者: Amsterdam: Elsevier BV
    摘要: Polycrystalline samples of Ca1−xBixMn1−ySiyO3−δ (x = y = 0.00, 0.02, 0.03, 0.04, and 0.05) are prepared by conventional solid state reactions. Thermoelectric properties are measured at 300–700 K. All the samples are single phase with an orthorhombic structure. Thermopower of all the samples is negative, indicating that predominant carriers are electrons over the entire temperature range. Among the samples, Ca0.98Bi0.02Mn0.98Si0.02O3−δ has the highest dimensionless figure of merit ZT = 0.02. This value represents an improvement of about 162% with respect to the parent compound of CaMnO3−δ at 300 K.
    關聯: Journal of Alloys and Compounds 552, pp.236–239
    DOI: 10.1016/j.jallcom.2012.10.078
    显示于类别:[物理學系暨研究所] 期刊論文

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