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Pb2+-stabilized Ruddlesden–Popper (Sr1−xPbx)3Ti2O7 ceramics

Published online by Cambridge University Press:  10 May 2016

Feng Gao
Affiliation:
Department of Materials Science and Engineering, Pennsylvania State University, PA16802, USA; and State Key Laboratory of Solidification Processing, School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
Yunfei Chang
Affiliation:
Department of Materials Science and Engineering, Pennsylvania State University, PA16802, USA; and Condensed Matter Science and Technology Institute & School of Science, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China
Stephen F. Poterala
Affiliation:
Department of Materials Science and Engineering, Pennsylvania State University, PA16802, USA
Elizabeth Kupp
Affiliation:
Department of Materials Science and Engineering, Pennsylvania State University, PA16802, USA
Gary L. Messing*
Affiliation:
Department of Materials Science and Engineering, Pennsylvania State University, PA16802, USA
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Pb2+-doped (Sr1−xPbx)3Ti2O7 (SPT) ceramics were fabricated by a solid state reaction. The stability and lattice structure of Sr3Ti2O7 and Sr4Ti3O10 Ruddlesden–Popper (RP) phases were studied as a function of Pb2+ content and sintering atmosphere. X-ray diffraction indicates that SrO(SrTiO3)n RP phase formation is sensitive to the Sr:Ti ratio of the raw materials and is a complex circularly iterative process. When the PbO concentration is less than x = 0.03, pure Sr3Ti2O7 can be obtained. Sr4Ti3O10 was found to be the main phase in the SPT samples for x ≥ 0.075. Pb2+ stabilizes SrO(SrTiO3)n RP phases by substitution for Sr2+ which reduces the lattice stress of the RP phase. It was observed that SrO vaporization losses at high temperature can be compensated by the decomposition of the intermediate SrPbO3 phase at lower temperature.

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Articles
Copyright
Copyright © Materials Research Society 2016 

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References

REFERENCES

Mehta, R.J. and Ramanath, G.: High efficiency nanobulk thermoelectrics by bottom-up nanocrystal sculpting and assembly. Am. Ceram. Soc. Bull. 91(3), 28 (2012).Google Scholar
Misture, S. and Edwards, D.: High temperature oxide thermoelectrics. Am. Ceram. Soc. Bull. 91(3), 24 (2012).Google Scholar
Shakouri, A.: Recent developments in semiconductor thermoelectric physics and materials. Annu. Rev. Mater. Res. 41, 399 (2011).Google Scholar
Kumar, S.R.S., Hedhili, M.N., Cha, D., Tritt, T.M., and Alshareef, H.N.: Thermoelectric properties of strontium titanate superlattices incorporating niobium oxide nanolayers. Chem. Mater. 26, 2726 (2014).Google Scholar
Abutaha, A.I., Kumar, S.R.S., Li, K., Dehkordi, A.M., Tritt, T.M., and Alshareef, H.N.: Enhanced thermoelectric figure-of-merit in thermally robust, nanostructured superlattices based on SrTiO3. Chem. Mater. 27, 2165 (2015).Google Scholar
Koumoto, K., Wang, Y.F., Zhang, R., Kosuga, A., and Funahashi, R.: Oxide thermoelectric materials: A nanostructuring approach. Annu. Rev. Mater. Res. 40, 363 (2010).Google Scholar
Sun, R.R., Qin, X.Y., Li, L.L., Li, D., Zhang, J., Zhang, Y.S., and Tang, C.J.: The effects of elements doping on transport and thermoelectric properties of Sr3Ti2O7. J. Phys. Chem. Solids 75, 629 (2014).Google Scholar
Chernatynskiy, A., Grimes, R.W., Zurbuchen, M.A., Clarke, D.R., and Phillpot, S.R.: Crossover in thermal transport properties of natural, perovskite-structured superlattices. Appl. Phys. Lett. 95, 161906 (2009).Google Scholar
McCoy, M.A., Grimes, R.W., and Lee, W.E.: Phase stability and interfacial structures in the SrO–SrTiO3 system. Philos. Mag. A 75(3), 833 (1997).CrossRefGoogle Scholar
Liu, Y.F., Lu, Y., Xu, M., and Zhoun, L.F.: Formation mechanisms of platelet Sr3Ti2O7 crystals synthesized by the molten salt synthesis method. J. Am. Ceram. Soc. 90(6), 1774 (2007).CrossRefGoogle Scholar
Ishida, Y., Kakimoto, K.I., Ogawa, H., and Aki, M.: Transitional mechanism of particle Sr3Ti2O7 morphology in the molten salt synthesis. Ferroelectrics 381, 24 (2009).CrossRefGoogle Scholar
Orloff, N.D., Tian, W., Fennie, C.J., Lee, C.H., Gu, D., Mateu, J., Xi, X.X., Rabe, K.M., Schlom, D.G., Takeuchi, I., and Booth, J.C.: Broadband dielectric spectroscopy of Ruddlesden–Popper Srn+1TinO3n+1 (n = 1, 2, 3… ) thin films. Appl. Phys. Lett. 94, 042908 (2009).Google Scholar
Jungbauer, M., Hühn, S., Egoavil, R., Tan, H., Verbeeck, J., Tendeloo, G.V., and Moshnyaga, V.: Atomic layer epitaxy of Ruddlesden–Popper SrO(SrTiO3)n films by means of metalorganic aerosol deposition. Appl. Phys. Lett. 105, 251603 (2014).Google Scholar
Emanuel, G., Alexandr, A.L., Marianne, R., Muller, J., Paufler, P., and Meyer, D.C.: Oriented growth of Srn+1TinO3n+1 Ruddlesden–Popper phases in chemical solution deposited thin films. J. Solid State Chem. 179, 1864 (2006).Google Scholar
Wang, Y.F., Lee, K.H., Ohta, H., and Koumoto, K.: Thermoelectric properties of electron doped SrO(SrTiO3)n (n = 1, 2). Ceramics. J. Appl. Phys. 105, 103701 (2009).Google Scholar
Lee, K.H., Wang, Y.F., Kim, S.W., Ohta, H., and Koumoto, K.: Thermoelectric properties of Ruddlesden–Popper phase n-type semiconducting oxides: La-, Nd-, and Nb-doped Sr3Ti2O7. Int. J. Appl. Ceram. Technol. 4(4), 326 (2007).Google Scholar
Snyder, G.J. and Toberer, E.S.: Complex thermoelectric materials. Nat. Mater. 7, 105 (2008).Google Scholar
Gorsse, S., Bellanger, P., Brechet, Y., Sellier, E., Umarji, A., Ail, U., and Decourt, R.: Nanostructuration via solid state transformation as a strategy for improving the thermoelectric efficiency of PbTe alloys. Acta Mater. 59, 7425 (2011).Google Scholar
Nien, C.H. and Lu, H.Y.: Crystallographic orientation relationships between SrTiO3 and Ruddlesden–Popper phases. J. Am. Ceram. Soc. 95(5), 1676 (2012).Google Scholar
Reshak, A.H.: Thermoelectric properties of Srn+1TinO3n+1 (n = 1, 2, 3, ∞) Ruddlesdene–Popper homologous series. Renewable Energy 76, 36 (2015).Google Scholar
Beznosikov, B.V. and Aleksandrov, K.S.: Perovskite-like crystals of the Ruddlesden–Popper series. Crystallogr. Rep. 45(5), 792 (2000).Google Scholar
Jacob, K.T. and Jayadevan, K.P.: System Sr–Pb–O: Phase equilibria and thermodynamics using solid-state cells with buffer electrodes. Chem. Mater. 12, 1779 (2000).Google Scholar
Klein, R., Cook, L.P., and Wong-Ng, W.: Enthalpies of formation of SrPbO3 and Sr2PbO4. J. Chem. Thermodyn. 34, 2083 (2002).Google Scholar
Ruddlesden, S.N. and Popper, P.: The compound Sr3Ti2O7 and its structure. Acta Crystallogr. 11, 54 (1958).Google Scholar
Noguera, C.: Theoretical investigation of the Ruddlesden–Popper compounds Srn+1TinO3n+1 (n = 1–3). Philos. Mag. Lett. 80(3), 173 (2000).Google Scholar
Kamba, S., Samoukhina, P., Kadlec, F., Pokorny, J., Petzelt, J., Reaney, I.M., and Wise, P.L.: Composition dependence of the lattice vibrations in Srn+1TinO3n+1 Ruddlesden–Popper homologous series. J. Eur. Ceram. Soc. 23, 2639 (2003).Google Scholar
Jacob, K.T. and Rajitha, G.: Thermodynamic properties of strontium titanates: Sr2TiO4, Sr3Ti2O7, Sr4Ti3O10, and SrTiO3. J. Chem. Thermodyn. 43, 51 (2011).CrossRefGoogle Scholar
Mccarthy, G.J., White, W.B., and Roy, R.: Phase equilibria in the 1375°C isotherm of the system Sr–Ti–O. J. Am. Ceram. Soc. 52(9), 463 (1969).CrossRefGoogle Scholar
Lide, D.R.: CRC Handbook of Chemistry and Physics, 86th ed. (CRC Press, Boca Raton, FL, 2005).Google Scholar
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