Polycrystalline ceramics with nominal composition of Ca3-xYxCo4O9+δ (0≤x≤0.10) were grown using the citrate-complex method. Thermoelectric properties were studied using Seebeck coefficient S(T) and electrical resistivity ρ(T) measurements. These transport properties were studied in the temperature range between 100 and 290K. For low doping levels in Y substituted samples (x≤0.06) the magnitude of S(T) and ρ(T) decreases with yttrium content. The temperature behavior of S(T) and ρ(T) was interpreted in terms of the small-polaron hopping mechanism. From S(T) and ρ(T) data it was possible to calculate the thermoelectric power factor PF, which reaches maximum values close to 23 μW/K2-cm. These values become these compounds promissory thermoelectric compounds for use in low temperature thermoelectric applications.
This is a preview of subscription content, access via your institution.
We’re sorry, something doesn't seem to be working properly.
Please try refreshing the page. If that doesn't work, please contact support so we can address the problem.
D. M. Rowe CRC Handbook of thermoelectrics, CRC Press, Boca Raton Fl, 1995, Chap. 30.
G. S. Nolas J. Sharp and H. J. Goldsmid Thermoelectrics, basic principles and new materials developments, Springer-Verlag, Berlin, 2001.
G. Mahan B. Sales and J. Sharp Physics Today, 50, 42 (1997).
S. Yamanaka H. Kobayashi and K. Kurosaki J.J. Alloys Comp. 349, 321–324 (2003).
S. Li R. Funahashi I. Matsubara H. Yamada K. Ueno and M. Ikebe, Ceramics International, 27, 321–324 (2001).
E. Sudhakar J.G. Noudem S. Hebert and C. Goupil J.Phys. D: Appl. Phys. 38, 3751–3755 (2005).
L.C. Moreno D. Cadavid and J. E. Rodriguez Microelectronics Journal, 39, 548–550 (2008).
A.C. Casset C. Michel A. Maignan M. Hervieu O. Toulemonde F. Studer and B. Raveau Phys. Rev. B 62, 166 (2000).
T. Tani H. Itahara C. Xia and J. Sugiyama J. Matter. Chem. 13, 1865 (2003).
S.W. Li R. Funahashi I. Matsubara K. Ueno S. Sodeoka and H. Yamada Chem. Matter. 12, 2424 (2000).
Y. F. Zhang J. X. Zhang Q. M. Lu and Q. Y. Zhang Materials Letters, 60, 2443–2446 (2006).
D. M. Rowe D. M. Rowe CRC Handbook of thermoelectrics, CRC Press, Boca Raton Fl, 1995, Chap.3.
H.Q. Liu Y. Song S.N. Zhang X.B. Zhao and F.P. Wang J. Phys and Chem. Sol. 70, 600–603 (2009).
S. Noguch T. Sekimoto and T. Ishida J. Phys.: Condens Matter, 16, S5769 (2004).
Y. Wang Y. Sui J. Cheng X. Wang W. Su X. Liu and H.F. Fan J. Phys. Chem. C 114 (11), 5174–5181 (2010).
J.F. Kwak Phys. Rev. B 13, 652–657 (1976).
P.M. Chaikim and G. Beni Phys. Rev. B 13, 647–651 (1976).
N.F. Mott and E.A. Davis Electronic Processes in non-crystalline materials, Claredon Press, Oxford, 1979.
N.V. Lien and D.D. Toi Phys. Lett. A 261, 108–113 (1999).
About this article
Cite this article
Rodríguez, J.E., Moreno, L.C. Synthesis and Thermoelectric Properties of Y-doped Ca3Co4O9 Ceramics. MRS Online Proceedings Library 1267, 1102 (2010). https://doi.org/10.1557/PROC-1267-DD11-02