Alkaline earth stannates have renewed attention as potential materials for gas sensing, transparent conducting oxides and ceramic capacitor applications. A noble wet chemical route is chosen to synthesize BaSnO 3 powders having micron size grains. Problems related to uneven grains and poor densification in conventional solid state route have been overcome in the present method. X-ray diffraction data confirms the single phase formation without any secondary phase having cubic perovskite structure (S.G. Pm-3m). The estimated lattice parameter is ≈4.11933 Å and percentage density is ≈90%. The microstructure probed by scanning electron micrograph reveals almost homogeneously distributed particles having random shape with some porosity. Phonon modes in FT-IR and Raman spectra confirm the local symmetry distortion. The DC conductivity at 200 ° C approaches almost 2 × 10 - 2 (Ω-cm) -1 , which is almost of the same order as that observed in perovskite based electronic conductors. DC and a.c. electrical conductivity of the material follow Mott’s variable range hopping at low temperature and Arrhenius type thermally activated process at elevated temperatures. Evidence of small polar on formation is also verified. Optical band gap estimated from absorption data is ≈2.94 very close to the reported value. Composition prepared through the noble wet chemical route has high electrical conduction and suitable for gas sensing applications.
KeywordsX-Ray DiffractionRaman SpectraVariable Range HoppingPhonons
Moseley, P.T., Williams, D.E., Norris, J.O.W. and Tofield, B.C. (1988) Electrical Conductivity and Gas Sensitivity of Some Transition Metal Tantalates. Sensors and Actuators, 14, 79-91. https://doi.org/10.1016/0250-6874(88)80008-8
Shimizu, Y., Shima-bukaro, M., Arai, H. and Seiyama, T. (1989) Humidity—Sensitive Characteristics of La3+-Doped and Undoped SrSnO3. Journal of Electrochemical Society, 136, 1206. https://doi.org/10.1149/1.2096854
Lumpe, U., Gerblinger, J. and Meixner, H. (1995) Carbon-Monoxide Sensors Based on Thin Films of BaSnO3. Sensors and Actuators B, 24-25, 657-660. https://doi.org/10.1016/0925-4005(95)85145-3
Lumpe, U., Gerblinger, J. and Meixner, H. (1995) Nitrogen Oxide Sensors Based on Thin Films of BaSnO3. Sensors and Actuators B, 26-27, 97-98. https://doi.org/10.1016/0925-4005(94)01565-Y
Kocemba, I., Jedrzejewska, M.W., Szychowska, A., Rynkowski, J. and Gowka, M. (2007) The Properties of Barium Stannate and Aluminum Oxide-Based Gas Sensor: The Role of Al2O3 in This System. Sensors and Actuators B, 121, 401-405. https://doi.org/10.1016/j.snb.2006.03.052
Bajpai, P.K., Ratre, K., Pastore, M. and Sinha, T.P. (2003) Preparation, Characterization and Dielectric Behaviour of Some Yttrium Doped Strontium Stannates. Bulletin of Materials Science, 26, 461-464. https://doi.org/10.1007/BF02707341
Licheron, M., Jouan, G. and Husson, E. (1995) Characterization of BaSnO3 Powder Obtained by a Modified Sol-Gel Route. Journal of the European Ceramic Society, 17, 1453-1457. https://doi.org/10.1016/S0955-2219(97)00002-2
Kutty, T.R.N. and Vivekanandan, R. (1987) BaSnO3 Fine Powders from Hydrothermal Preparations. Materials Research Bulletin, 22, 1457-1465. https://doi.org/10.1016/0025-5408(87)90210-8
Udawatte, C.P., Kakihana, M. and Yoshimura, M. (1998) Preparation of Pure Perovskite-Type BaSnO3 Powders by the Polymerized Complex Method at Reduced Temperature. Solid State Ionics, 108, 23-30. https://doi.org/10.1016/S0167-2738(98)00014-9
Song, Y.J. and Kim, S. (2001) Preparation of Fine BaSnO3 Powders by Oxalate Co-Precipitation Method. Journal of Industrial and Engineering Chemistry, 7, 183-185.
Smith, A.J. and Welch, A.J. E. (1960) Some Mixed Metal Oxides of Perovskite Structure. Acta Crystallographica, 13, 653-656. https://doi.org/10.1107/S0365110X60001540
Mountstevens, E.H., Attfeld, J.P. and Redfern, S.A.T. (2003) Cation-Size Control of Structural Phase Transitions in Tin Perovskites. Journal of Physics: Condensed Matter, 15, 8315-8326. https://doi.org/10.1088/0953-8984/15/49/010
Larramona, G., Gutierrez, C., Pereira, I., Nunes, M.R. and Da Costa, F.M.A. (1989) Characterization of the Mixed Perovskite BaSn1–xSbxO3 by Electrolyte Electroreflectance, Diffuse Reflectance, and X-Ray Photoelectron Spectroscopy. Journal of the Chemical Society, Faraday Transactions 1, 85, 907-916. https://doi.org/10.1039/f19898500907
Mizoguchi, H., Woodward, P.M., Park, C.H. and Keszler, D.H. (2004) Strong Near-Infrared Luminescence in BaSnO3. Journal of American Chemical Society, 126, 9796-9800. https://doi.org/10.1021/ja048866i
Gopal Reddy, C.V., Manorama, S.V. and Rao, V. J. (2001) Preparation and Characterization of Barium Stannate: Application as a Liquefied Petroleum Gas Sensor. Journal of Materials Science, 12, 137-142.
Tao, S., Gao, F., Liu, X. and Sorensen, O.T. (2000) Ethanol-Sensing Characteristics of Barium Stannate Prepared by Chemical Precipitation. Sensors and Actuators B, 71, 223-227.
Cerda, J., Arbiol, J. and Dezanneau, G. (2002) Perovskite-Type BaSnO3 Powders for High Temperature Gas Sensor Applications. Sensors and Actuators B, 84, 21-25. https://doi.org/10.1016/S0925-4005(02)00005-9
Jayaraman, V., Manhamma, G., Ganannasekaran, T. and Periaswami, G. (1996) Evaluation of BaSnO3 and Ba(Zr,Sn)O3 Solid Solutions as Semiconductor Sensor Materials. Solid State Ionics, 86-88, 1111-1114. https://doi.org/10.1016/0167-2738(96)00277-9
Doroftei, C., Popa, P.D. and Iacomi, F. (2012) Study of the Influence of Nickel Ions Substitutes in Barium Stannates Used as Humidity Resistive Sensors. Sensors and Actuators A, 173, 24-29. https://doi.org/10.1016/j.sna.2011.10.007
Upadhyay, S. and Kavitha, P. (2007) Lanthanum Doped Barium Stannate for Humidity Sensor. Materials Letters, 61, 1912-1915. https://doi.org/10.1016/j.matlet.2006.07.154
Upadhayay, S., Prakask, O. and Kumar, D. (1997) Preparation and Characterization of Barium Stannate BaSnO3. Journal of Materials Science Letters, 16, 1330-1332. https://doi.org/10.1023/A:1018559932473
Farfan, J.C., Rodriguez, J.A., Fajardo, F., Vera Lopez, E., Tellez, D.A.L. and Rojas, J.R. (2009) structural Properties, Electric Response and Electronic Feature of BaSnO3 Perovskite. Physica B, 404, 2720-2722. https://doi.org/10.1016/j.physb.2009.06.126
Azad, A.M. and Hon, N.C. (1998) Characterization of BaSnO3-Based Ceramics: Part 1. Synthesis, Processing and Microstructural Development. Journal of Alloys and Compounds, 270, 95-106. https://doi.org/10.1016/S0925-8388(98)00370-3
Smith, M.G., Goodenough, J.B., Manthiram, A., Taylor, R.D., Peng, W. and Kimball, C.W. (1992) Tin and Antimony Valence States in BaSn0.85Sb0.15O3-δ. Journal of Solid State Chemistry, 98, 181. https://doi.org/10.1016/0022-4596(92)90084-9
Bao, M., Lee, W.D. and Zhu, P. (1993) Dy on the Dielectric Properties of Oxide-Doped Ba(Ti,Sn)O3 Ceramics Prepared from Ultrafine Powder. Journal of Materials Science, 28, 6617. https://doi.org/10.1007/BF00356405
Upadhyay, S. (2013) High Temperature Impedance Spectroscopy of Barium Stannate, BaSnO3. Bulletin of Materials Science, 36, 1019-1036. https://doi.org/10.1007/s12034-013-0578-5
Soni, P. and Bajpai, P.K. (2011) Synthesis and Dielectric Characterization of Non-Lead Based Perovskite Ceramics Ba1-xSrxSnO3. AIP Conference Proceedings, 1372, 184. https://doi.org/10.1063/1.3644440
Yi, H.C. and Moore, J.J. (1990) Self-Propagating High-Temperature (Combustion) Synthesis (SHS) of Powder-Compacted Materials. Journal of Materials Science, 25, 1159. https://doi.org/10.1007/BF00585421
Creda, J., Arbil, J., Diaz, R., Dezannweau, G. and Morante, J.R. (2002) Synthesis of Perovskite-Type BaSnO3 Particles Obtained by a New Simple Wet Chemical Route Based on a Sol-Gel Process. Material Letters, 56, 131-136. https://doi.org/10.1016/S0167-577X(02)00428-7
Nakagauchi, R. and Kozuka, H. (2007) Preparation of Ba(Ti,Sn)O3 Thin Films by PVP-Assisted Sol-Gel Method and Their Dielectric Properties. Journal of Sol-Gel Science and Technology, 42, 221-229. https://doi.org/10.1007/s10971-007-0772-2
Azad, A.M., Hashim, M. and Baptist, S. (2000) Phase Evolution and Microstructural Development in Sol-Gel Derived MSnO3 (M = Ca, Sr and Ba). Journal of Materials Science, 35, 5475-5483. https://doi.org/10.1023/A:1004825130403
Song, S., Zhai, J., Gao, L. and Yao, X. (2009) Orientation-Dependent Dielectric Properties of Ba(Sn0.15Ti0.85)O3 Thin Films Prepared by Sol-Gel Method. Journal of Physics and Chemistry of Solids, 70, 1213-1217. https://doi.org/10.1016/j.jpcs.2009.07.007
Lu, W. and Schmidt, H. (2007) Synthesis of Nanosized BaSnO3 Powders from Metal Isopropoxides. Journal of Sol-Gel Science and Technology, 42, 55-64.
Wang, Y., Chesnaud, A., Bevillon, E., Yang, J. and Dezanneau, G. (2011) Synthesis, Structure and Protonic Conduction of BaSn0.875M0.125O3-δ (M = Sc, Y, In and Gd). International Journal of Hydrogen Energy, 36, 7688-7695.
Lu, W. and Schmidt, H. (2005) Hydrothermal Synthesis of Nanocrystalline BaSnO3 Using a SnO2·xH2O Sol. Journal of European Ceramic Society, 25, 919-925. https://doi.org/10.1016/j.jeurceramsoc.2004.04.010
Lu, W. and Schmidt, H. (2008) Lyothermal Synthesis of Nanocrystalline BaSnO3 Powders. Ceramic International, 34, 645-649. https://doi.org/10.1016/j.ceramint.2007.01.002
Patil, N.U. and Jain, G.H. (2012) Synthesis, Characterization and Performance of Pure and Surface Modified Nano-BaSnO3 with TiO2 Thick Film Resistor as a Gas Sensor. Proceedings of 6th International Conference on Sensing Technology ICST, Kolkata, 18-21 December 2012, 704-708.
Ramdas, B. and Vijayaraghavan, R. (2010) Low Temperature Synthesis of Ba1-xSrxSnO3 (x = 0 - 1) from Molten Alkali Hydroxide Flux. Bulletin of Materials Science, 33, 75-78. https://doi.org/10.1007/s12034-010-0011-2
Yasukawa, M., Kono, T., Ueda, K., Yanagi, H. and Hosono, H. (2009) High-Temperature Thermoelectric Properties of La-Doped BaSnO3 Ceramics. Materials Science and Engineering B, 173, 29-32. https://doi.org/10.1016/j.mseb.2009.10.002
Bevillon, E., Chesnaud, A., Wang, Y., Dezanneau, G. and Geneste, G. (2008) Theoretical and Experimental Study of the Structural, Dynamical and Dielectric Properties of Perovskite BaSnO3,. Journal of Physics: Condensed Matter, 20, 145217-145222. https://doi.org/10.1088/0953-8984/20/14/145217
Koferstein, R., Jager, L., Zenkner, M. and Ebbinghaus, S.G. (2009) Nano-Sized BaSnO3 Powder via a Precursor Route: Comparative Study of Sintering Behaviour and Mechanism of Fine and Coarse-Grained Powders. Journal of European Ceramic Society, 29, 2317-2324. https://doi.org/10.1016/j.jeurceramsoc.2009.01.026
Alves, M.C.F., Souza, S.C., Lima, H.H.S. and Nascimento, M.R. (2009) Influence of the Modifier on the Short and Long Range Disorder of Stannate Perovskites. Journal of Alloys and Compounds, 476, 507-512. https://doi.org/10.1016/j.jallcom.2008.09.034
Jiang, Y.J., Zeng, L.Z., Wang, R.P., Zhu, Y. and Liu, Y.L. (1996) Fundamental and Second-Order Raman Spectra of BaTiO3. Journal of Raman Spectroscopy, 27, 31-34. https://doi.org/10.1002/(SICI)1097-4555(199601)27:1 3.0.CO;2-K
Naik, R., Nazarko, J.J., Flattery, C.S., Venkateswaran, U.D., Naik, V.M., Mohammed, M.S., Auner, G.W., Mantese, J.V., Schubring, N.W., Micheli, A.L. and Catalan, A.B. (2000) Temperature Dependence of the Raman Spectra of Polycrystalline Ba1-xSixTiO3. Physical Review B, 61, 11367.
Begg, B.D., Finnie, K.S. and Vance, E.R. (1996) Raman Study of the Relationship between Room-Temperature Tetragonality and the Curie Point of Barium Titanate. Journal of the American Ceramic Society, 79, 2666-2672. https://doi.org/10.1111/j.1151-2916.1996.tb09032.x
Kamba, S., Samoukhina, P., Kadlec, F., Pokorny, J. and Reaney, I.M. (2003) Composition Dependence of the Lattice Vibrations in Srn+1TinO3n+1 Ruddlesden-Popper Homologous Series. Journal of the European Ceramic Society, 23, 2639-2645. https://doi.org/10.1016/S0955-2219(03)00150-X
Stanislavchuk, T.N., Sirenko, A.A., Litvinchuk, A.P., Luo, X. and Cheong, S.-W. (2012) Electronic Band Structure and Optical Phonons of BaSnO3 and Ba0.97La0.03 SnO3 Single Crystals: Theory and Experiment. Journal of Applied Physics, 112, Article ID: 044108. https://doi.org/10.1063/1.4748309
Abrashev, M.V., Backstrom, J., Borjesson, L., Popov, V.N., Chakalov, R.A., Kolev, N., Meng, R.-L. and Iliev, M.N. (2002) Raman Spectroscopy of CaMnO3: Mode Assignment and Relationship be-tween Raman Line Intensities and Structural Distortions. Physical Review B, 65, Article ID: 184301. https://doi.org/10.1103/PhysRevB.65.184301
Bajpai, S. and Bajpai, P.K. (2017) Defect Structure in Charge Compensated Lanthanum Doped BaSnO3 as Probed by Raman Spectroscopy.
Tarari, M., Daumerc, J.P., Dordor, P., Pouchard, M., Behr, G. and Krabbes, G. (1994) Preparation and Characterization of Lanthanum Doped BaSnO3. Journal of Physics and Chemistry of Solids, 55, 1239-1243. https://doi.org/10.1016/0022-3697(94)90205-4
Nakamoto, K. (2008) Infrared Spectra of Inorganic and Coordination Compounds. 6th Edition, Wiley Publications, Hoboken.
Tauc, J. (1968) Optical Properties and Electronic Structure of Amorphous Ge and Si. Materials Research Bulletin, 3, 37-46. https://doi.org/10.1016/0025-5408(68)90023-8
Mizoguchi, H., Chen, P., Boolehand, P., Kuenofotov, V., Felser, G., Barnes, P.W. and Woodward, P.M. (2013) Electrical and Optical Properties of Sb-Doped BaSnO3. Chemistry of Materials, 25, 3858-3866. https://doi.org/10.1021/cm4019309
Gobadi, N. (2013) Band Gap Determination using Absorption Spectrum Fitting Procedure. International Nano Letters, 3, 2. https://doi.org/10.1186/2228-5326-3-2
Li, M., Pietrowski, M.J., De Souza, R.A., Zhang, H., Reaney, I.M., Cook, S.N., Kilner, J.A. and Sinclair, D.C. (2014) A Family of Oxide Ion Conductors Based on the Ferroelectric Perovskite Na0.5Bi0.5TiO3. Nature Materials, 13, 31-35. https://doi.org/10.1038/nmat3782
Salssi, A. (2015) Ab Initio Study of a Cubic Perovskite: Structural, Electronic, Optical and Electrical Properties of Native, Lanthanum- and Antimony-Doped Barium Tin Oxide. Material Science in Semiconductor Processing, 32, 100-105. https://doi.org/10.1016/j.mssp.2014.12.031
Mott, N.F. (1990) Metal Insulator Transitions. Taylor and Francis, London.
Ravi, S. and Kar, M. (2004) Study of Magneto-Resistivity in La1-xAgxMnO3 Compounds. Physica B, 348, 169-176. https://doi.org/10.1016/j.physb.2003.11.087
Sarma, D.D., Chainani, A., Krishnakumar, S.R., Vescovo, E., Carbone, C., Eberhardt, W., Rader, O., Jung, C., Hellwig, C., Gudat, W., Srikanth, H. and Raychaudhuri, A.K. (1998) Disorder Effects in Electronic Structure of Substituted Transition Metal Compounds. Physical Review Letters, 80, 4004-4007. https://doi.org/10.1103/PhysRevLett.80.4004
Jung, W.H. (1998) Evaluation of Mott’s Parameters for Hopping Conduction in La0.67Ca0.33MnO3 above Tc. Journal of Materials Science Letters, 17, 1317-1319. https://doi.org/10.1023/A:1006665200481
Mott, N.F. and Davis, E.A. (1971) In Electronics Process in Non-Crystalline Materials. Clarendon, Oxford.
Viret, M., Ranno, L. and Coey, J.M.D. (1997) Magnetic Localization in Mixed-Valence Manganites. Physical Review B, 55, 8067-8070. https://doi.org/10.1103/PhysRevB.55.8067
Millis, A.J., Littlewood, P.B. and Shraiman, B.I. (1995) Double Exchange Alone Does Not Explain the Resistivity of La1-xSrxMnO3. Physical Review Letters, 74, 5144-5147. https://doi.org/10.1103/PhysRevLett.74.5144
Jonscher, A.K. (1977) The “Universal” Dielectric Response, Nature, 267, 673-679. https://doi.org/10.1038/267673a0
Hirose, N. and West, A.R. (1996) Impedance Spectroscopy of Undoped BaTiO3 Ceramics. Journal of the American Ceramic Society, 79, 1633-1641. https://doi.org/10.1111/j.1151-2916.1996.tb08775.x