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Fabrication and Thermoelectric Properties of Peovskite-type Thermoelectric Oxide Y0.95R0.05CoO3 (R=Ca, Sr, Ba) |
LIU Yi, LI Haijin, ZHANG Qing, LIU Houtong |
School of Mathematics and Physics, Anhui University of Technology, Maanshan 243032 |
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Cite this article:
LIU Yi LI Haijin ZHANG Qing LIU Houtong. Fabrication and Thermoelectric Properties of Peovskite-type Thermoelectric Oxide Y0.95R0.05CoO3 (R=Ca, Sr, Ba). Chin J Mater Res, 2012, 26(1): 31-36.
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Abstract The alkaline-earth metal substituted compounds Y0.95R0.05CoO3 (R=Ca, Sr, Ba) were prepared by sol–gel process, and the effect of substituting on its electrical transport and thermoelectric properties were systematically investigated. The results show that with the increase of Ca2+、Sr2+、Ba2+ ionic radius, the electrical resistivity of the Y0.95R0.05CoO3 compounds increases gradually, Seebeck coefficient was improving, and the power factor decreases, in corresponding temperature range. The high-temperature thermoelectric power factor of the YCoO3 system can be improved effectively by the substitution of Ca2+ with smaller radius approaching that of the ion Y3+.
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Received: 17 October 2011
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Fund: Supported by National Natural Science Foundation of China No.41075027, the Education Office Key Foundation of Anhui No.KJ2011A053, the Education Office Foundation of Anhui No.2008jyxm313, and the Key Lab Fund of Novel Thin Film Solar Cells, CAS, No.KF201101. |
1 Y.Liu, X.Y.Qin, Y.F.Wang, H.X.Xin, J.Zhang, H.J.Li, Electrical transport and thermoelectric properties of Y1-xCaxCoO3 (0 x0.1) at high temperatures, J. Appl. Phy., 101, 083709(2007)2 G.S.Nolas, J.Sharp, H.J.Goldsmid, Thermelectrics: Basic Principles and New Materials Developments (Germany, Springger-Verlag, 2001) p.83 I.Terasaki, Y.Sasago, K.Uchinokura, Large thermoelectric powerin NaCo2O4 single crystals, Phys. Rev. B, 56, R12685(1997)4 J.Androulakis, P.Migiakis, J.Giapintzakis, La0.95Sr0.05CoO3: An efficient room-temperature thermoelectric oxide, Appl. Phys. Lett., 84, 1099(2004)5 A.C.Masset, C.Michel, A.Maignan, M.Hervieu, O.Toulemonde, F.Studer, B.Raveau, Misfit-layered with an anisotropic giant magnetoresistance: Ca3Co4O9, Phys. Rev. B, 62, 166(2000)6 A.Maignan, D.Flahaut, S.Hebert, Sign change of the thermoelectric power in LaCoO3, Eur. Phys. J. B, 39, 145(2004)7 V.G.Bhide, D.S.Rajoria, Y.S.Reddy, G.Rama Rao, and C.N.R.Rao, Spin-state equilibria in holmium cobaltate, Phys. Rev. B, 8, 5028(1973)8 G.Demazeau, M.Pouchard, P.Hagenmuller, Sur de nouveaux composes oxigen du cobalt +III derives de la perovsite, J. Solid. State. Chem., 9, 202(1974)9 A.Mehta, R.Berliner, R.W.Smith, The structure of yttrium cobaltate from neutron diffraction, J. Solid. State. Chem., 130, 192(1997)10 Y.Liu, X.Y.Qin, Temperature dependence of electrical resistivity of Ca-doped perovskite-type Y1-xCaxCoO3 prepared by sol-gel process, J. Phys. Chem. Solids, 67, 1893(2006)11 K.KnIvzek, Z.Jirak, J.Hejtmazek, M.Veverka, M.Marysko, B.C.Hauback, H.Fjellvag, Structure and physical properties of YCoO3 at temperatures up to 1000 K, Phys. Rev. B, 73, 214443(2006)12 G.Thornton, F.C.Morrison, S.Partington, B.C.Tofield, D.E.Williams, The rare earth cobaltates: localized or collective electron behaviour, J. Phys. C: Solid State Phys., 21, 2871(1988)13 K.KnIzek, Z.Jirak, J.Hejtmazek, M.Veverka, M.Marysko, G.Maris, T.T.M.Palstra, Structural anomalies associated with the electronic and spin transitions in LnCoO3, Eur. Phys. J. B, 47, 213(2005)14 J.Hejtmazek, Z.Jirak, K.KnIzek, M.Marysko, M.Veverka, H.Fujishiro, Magnetism, structure and transport of Y1-xCaxCoO3 and La1-xBaxCoO3, J. Magn. Magn. Materials, 272-276, E283(2004)15 V.M.Goldsmit, Geochemische vertailungsgesetze der elemente, skrifter norske videnskaps-akad, Oslo I Mat-Naturr, 2, 7(1926)16 Ji-Woong Moon, Won-Seon Seo, Hiroki Okabe, Takasi Okawa and Kunihito Koumoto, Ca-doped RCoO3 (R=Gd, Sm, Nd, Pr) as thermoelectric materials, J. Mater. Chem., 10, 2007(2000)17 Ji-Woong Moon, Yoshitake Masuda, Won-Seon Seo, Kunihito Koumoto, Ca-doped HoCoO3 as p-type oxide thermoelectric materials, Materials Letters, 48, 225(2001)18 YAN Shousheng, Fundamentals of Solid State Physics (Beijing, Peking University Press, 2002) p.208(阎守胜, kaishu 固体物理基础 (北京, 北京大学出版社, 2002) p.208) |
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