Abstract
In this work, improvement of the thermoelectric properties of bulk samples due to texture developed by a directional laser-assisted solidification process (laser floating zone melting method) is reported for cobaltite materials with compositions Bi2Sr2Co1.8O y and Bi2Ca2Co1.7O y . Sample composition and microstructure have been studied using x-ray diffraction and scanning electron microscopy. Thermoelectric properties have been measured between 4 K and 300 K by simultaneous determination of electrical resistivity and thermopower. All textured samples showed remarkable increase of power factor values as compared with conventional sintered ceramics.
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T. Kajikawa, J. Electron. Mater. 38, 1083 (2009). doi:10.1007/s11664-009-0831-2.
I. Terasaki, Y. Sasago, and K. Uchinokura, Phys. Rev. B 56, R12685 (1997). doi:10.1103/PhysRevB.56.R12685.
S.W. Li, R. Funahashi, I. Matsubara, K. Ueno, S. Sodeoka, and H. Yamada, J. Mater. Chem. 9, 1659 (1999).
A. Maignan, S. Hébert, M. Hervieu, C. Michel, D. Pelloquin, and D. Khomskii, J. Phys.: Condens. Matter 15, 2711 (2003). doi:10.1088/0953-8984/15/17/323.
R. Funahashi, I. Matsubara, and S. Sodeoka, Appl. Phys. Lett. 76, 2385 (2000). doi:0003-6951/2000/76(17)/2385/3/$17.00.
H. Itahara, C. Xia, J. Sugiyama, and T. Tani, J. Mater. Chem. 14, 61 (2004). doi:10.1039/b309804d.
E. Guilmeau, M. Mikami, R. Funahashi, and D. Chateigner, J. Mater. Res. 20, 1002 (2005). doi:10.1557/JMR.2005.0131.
V. Garnier, R. Caillard, A. Sotelo, and G. Desgardin, Physica C 319, 197 (1999). doi:10.1016/S0921-4534(99)00308-1.
M.M. Seabaugh, I.H. Kerscht, and C.L. Messing, J. Am. Ceram. Soc. 80, 1181 (1997).
A. Sotelo, E. Guilmeau, M.A. Madre, S. Marinel, J.C. Diez, and M. Prevel, J. Eur. Ceram. Soc. 27, 3697 (2007). doi:10.1016/j.jeurceramsoc.2007.02.020.
J.C. Diez, L.A. Angurel, H. Miao, J.M. Fernandez, and G.F. de la Fuente, Supercond. Sci. Technol. 11, 101 (1998). doi:10.1088/0953-2048/11/1/020.
J. Hejtmanek, Z. Jirak, M. Marysko, C. Martin, A. Maignan, M. Hervieu, and B. Raveau, Phys. Rev. B 60, 14057 (1999). doi:0163-1829/99/60(20)/14057(9)/$15.00.
E. Guilmeau, M. Pollet, D. Grebille, D. Chateigner, B. Vertruyen, R. Cloots, and R. Funahashi, Mater. Res. Bull. 43, 394 (2008). doi:10.1016/j.materresbull.2007.02.043.
M. Hervieu, A. Maignan, C. Michel, V. Hardy, N. Creon, and B. Raveau, Phys. Rev. B 67, 045112 (2003). doi:10.1103/PhysRevB.67.045112.
A. Maignan, D. Pelloquin, S. Hebert, Y. Klein, and M. Hervieu, Bol. Soc. Esp. Ceram. V 45, 122 (2006).
J. Liu, H.S. Yang, Y.S. Chai, L. Zhu, H. Qu, C.H. Sun, H.X. Gao, X.D. Chen, K.Q. Ruan, and L.Z. Cao, Phys. Lett. A 356, 85 (2006). doi:10.1016/j.physleta.2006.03.016.
M. Karppinen, H. Fjellvåg, T. Konno, Y. Morita, T. Motohashi, and H. Yamauchi, Chem. Mater. 16, 2790 (2004). doi:10.1021/cm049493n.
Acknowledgements
The authors wish to thank the Gobierno de Aragón (Project PI154/08 and Research Groups T12 and T74), the Spanish–French Integrated Action (HF2006-0171), and the Spanish Ministry of Science and Innovation (Project MAT2008-00429 and Project CEN 2007-2014) for financial support. The technical contributions of C. Estepa, J.A. Gómez, and C. Gallego are also acknowledged.
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Diez, J.C., Rasekh, S., Madre, M.A. et al. Improved Thermoelectric Properties of Bi-M-Co-O (M = Sr, Ca) Misfit Compounds by Laser Directional Solidification. J. Electron. Mater. 39, 1601–1605 (2010). https://doi.org/10.1007/s11664-010-1232-2
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DOI: https://doi.org/10.1007/s11664-010-1232-2