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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/96244

    Title: Thermoelectric properties of n-type Ca1−xBixMn1−ySiyO3−δ (x = y = 0.00, 0.02, 0.03, 0.04, and 0.05) system
    Authors: Ankam Bhaskara;Liu, Chia-Jyi;Yuan, J.J.;Chang, Ching-Lin
    Contributors: 淡江大學物理學系
    Keywords: Thermoelectric materials;Oxygen defect;Manganate;Thermal conductivity
    Date: 2013-03
    Issue Date: 2014-03-06 16:42:42 (UTC+8)
    Publisher: Amsterdam: Elsevier BV
    Abstract: 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.
    Relation: Journal of Alloys and Compounds 552, pp.236–239
    DOI: 10.1016/j.jallcom.2012.10.078
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

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