Abstract
In recent years, among different thermoelectric materials, SrTiO3 have been receiving great attention due to their greater capacity and conversion between electrical energy and heat energy. The thermoelectric properties of the SrTiO3 can be improved by substitutional do** on different sites (A-site and B-site) in the lattice. In this study, the improvement of the thermoelectric performance of the perovskite SrTiO3 by Cr-do** has been investigated. The doped SrTiO3 with Cr was synthesized by the conventional solid-state reaction method. The electronic transport properties including Seebeck coefficient, electrical conductivity, and thermal transport properties in a moderate temperature regime from 300 to 900 K have been investigated. The large absolute value of the Seebeck coefficient with low thermal conductivity was achieved by Cr-do**. The electrical conductivity was quite low but increased with increasing do** level up to x = 0.002 mol, and; hence, the power factor increased with increasing do** level up to x = 0.002 mol. The maximum ZT value was observed for SrTi0.998Cr0.002O3 at 773 K by the combination of a high value of the Seebeck coefficient and low thermal conductivity.
Similar content being viewed by others
References
S. Shafiee and R.A. Salim, Energy Policy 66, 547 (2014).
S. Shafiee and E. Topal, Energy Policy 37, 181 (2009).
J.R. Sootsman, D.Y. Chung, and M.G. Kanatzidis, Angew. Chem. Int. 48, 8616 (2009).
J.-F. Li, W.S. Liu, L.D. Zhao, and M. Zhou, NPG Asia Mater. 2, 152 (2010).
F. Casper, T. Graf, S. Chadov, B. Balke, and C. Felser, Semi-cond. Sci. Technol. 27, 3 (2012).
D.-Y. Chung, T. Hogan, P. Brazis, M. Rocci-Lane, C. Kannewurf, M. Bastea, C. Uher, and M.G. Kanatzidis, Science 287, 1024 (2000).
B.C. Sales, D. Mandrus, and R.K. Williams, Science 272, 1325 (1996).
R.T. Littleton IV, T.M. Tritt, J.W. Kolis, and D.R. Ketchum, Phys. Rev. B Condens. Matter 60, 13453 (1999).
C. Yu, T. Zhu, R. Shi, Y. Zhang, X. Zhao, and J. He, Acta Mater. 57, 2757 (2009).
I. Terasaki, Y. Sasago, and K. Uchinokura, Phys. Rev. B Condens. Matter 56, R12685 (1997).
A. Weidenkaff, R. Robert, M.H. Aguirre, L. Bocher, T. Lippert, and S. Canulescu, Renew. Energy 33, 342 (2008).
P. Tomes, R. Robert, M. Trottmann, L. Bocher, M.H. Aguirre, J. Hejtmanek, and A. Weidenkaff, J. Electron. Mater. 39, 1696 (2010).
H. Ohta, S. Kim, Y. Mune, T. Mizoguchi, K. Nomura, S. Ohta, T. Nomura, Y. Nakanishi, Y. Ikuhara, M. Hirano, H. Hosono, and K. Koumoto, Nat. Mater. 6, 129 (2007).
K. Koumoto, Y. Wang, R. Zhang, A. Kosuga, and R. Funahashi, Annu. Rev. Mater. Res. 40, 363 (2010).
S.Y. Watanebe, J.G. Bednorz, A. Bietsch, C. Gerber, D. Widmer, A. Beck, and S.J. Wind, J. Wind Appl. Phys. Lett. 78, 3738 (2001).
J. Inaba and T. Katsufuji, Phys. Rev. B Condens. Matter Mater. Phys. 72, 054208 (2005).
T. Hara, Mater. Chem. Phys. 91, 243 (2005).
T.H. Fang, Y.J. Hsiao, Y.S. Chang, and Y.H. Chang, Mater. Chem. Phys. 100, 418 (2006).
A. Tkach, P.M. Vilarinho, A.L. Kholkin, A. Paskhin, S. Veljko, and J. Petzelt, Phys. Rev. B Condens. Matter Mater. Phys. 73, 104113 (2006).
R.D. Shannon, Acta Crystallogr. A A32, 751 (1976).
A. Willfahart, Screen Printed Thermoelectric Devices, Linko**s University, SE-601, 74, (2014).
I. Mahmud, M.-S. Yoon, I.-H. Kim, M.-K. Choi, and S.-C. Ur, J. Korean Phys. Soc. 68, 35 (2016).
P.-P. Shang, B.-P. Zhang, Y. Liu, J.-F. Li, and H.-M. Zhu, J. Electron. Mater. 40, 926 (2011).
P.-P. Shang, B.-P. Zhang, J.-F. Li, and N. Ma, Solid State Sci. 12, 1341 (2010).
S. Ohta, T. Nomura, H. Ohta, M. Hirano, H. Hosono, and K. Koumoto, Appl. Phys. Lett. 87, 092108 (2005).
T. Okuda, K. Nakanishi, S. Miyasaka, and Y. Tokura, Phys. Rev. B Condens. Matter Mater. Phys. 63, 113104 (2001).
Acknowledgements
This work was supported by a Grant from the Regional Innovation Center (RIC) Program, which was conducted by the Ministry of SMEs and Startpus of the Korean Government.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Khan, T.T., Kim, IH. & Ur, SC. Improvement of the Thermoelectric Properties of the Perovskite SrTiO3 by Cr-Do**. J. Electron. Mater. 48, 1864–1869 (2019). https://doi.org/10.1007/s11664-018-6623-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11664-018-6623-9