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Phase evolution, microscopic analysis, optical and dielectric property evaluation of Co-doped BaSnO3 by mechanical mix assisted solid state sintering method

  • Received: 30 July 2016 Accepted: 11 September 2016 Published: 19 September 2016
  • Cobalt (Co) doped barium stannate, i.e. BaSn1−xCoxO3 with x = 0.05, 0.10 and 0.15 were prepared by mechanical mixing in agate mortar followed by sintering at 1350 °C for 2 hours. X-ray diffraction analysis (XRD) of the sample confirmed the cubic perovskite structure, crystallite size by Scherrer’s formula 50 nm, 49 nm respectively and planes of orientation (110), (111), (200), (211), (220) along the major peaks. Absorption spectra obtained due to symmetric and asymmetric stretching of M–O coordinated bond formations were determined by Fourier Transform Infrared Spectroscopy (FTIR). Band gap analysis of the sintered samples evaluated using Tauc relation was obtained from UV-VIS spectral analysis while luminescence by PL spectra. Morphological analyses were carried out by SEM while EDX was done to know the presence of required elements in the samples. Particle sizes of the samples were in the range of 50–100 nm obtained by HRTEM analysis. SAED pattern was also obtained for synthesized material indicating polycrystalline nature. Higher Co doping on barium stannate leads to decrease in dielectric constant due to possible lower ionic polarization at B site of perovskite.

    Citation: Asima Adak (Maity), Soumya Mukherjee, Mahua Ghosh Chaudhuri, SiddharthaMukherjee. Phase evolution, microscopic analysis, optical and dielectric propertyevaluation of Co-doped BaSnO3 by mechanical mix assisted solid statesintering method[J]. AIMS Materials Science, 2016, 3(3): 1281-1293. doi: 10.3934/matersci.2016.3.1281

    Related Papers:

  • Cobalt (Co) doped barium stannate, i.e. BaSn1−xCoxO3 with x = 0.05, 0.10 and 0.15 were prepared by mechanical mixing in agate mortar followed by sintering at 1350 °C for 2 hours. X-ray diffraction analysis (XRD) of the sample confirmed the cubic perovskite structure, crystallite size by Scherrer’s formula 50 nm, 49 nm respectively and planes of orientation (110), (111), (200), (211), (220) along the major peaks. Absorption spectra obtained due to symmetric and asymmetric stretching of M–O coordinated bond formations were determined by Fourier Transform Infrared Spectroscopy (FTIR). Band gap analysis of the sintered samples evaluated using Tauc relation was obtained from UV-VIS spectral analysis while luminescence by PL spectra. Morphological analyses were carried out by SEM while EDX was done to know the presence of required elements in the samples. Particle sizes of the samples were in the range of 50–100 nm obtained by HRTEM analysis. SAED pattern was also obtained for synthesized material indicating polycrystalline nature. Higher Co doping on barium stannate leads to decrease in dielectric constant due to possible lower ionic polarization at B site of perovskite.


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    [1] Singh P, Sebastian PC, Kumar D, et al. (2007) Correlation of microstructure and electrical conduction behaviour with defect structure of niobium doped barium stannate. J Alloy Compd 437: 34–38.
    [2] Upadhyay S, Parkash O, Kumar D (2001) Solubility of lanthanum, nickel and chromium in barium stannate. Mater Lett 49: 251–255.
    [3] Doroftei C, Popa DP, Iacomi F (2012) Study of the influence of nickel ions substitutes in barium stannates used as humidity resistive sensors. Sensor Actuat A-Phys 173: 24–29.
    [4] Lu WS, Schmidt H (2008) Lyothermal synthesis of nanocrystalline BaSnO3 powders. Ceram Inter 34: 645–649.
    [5] Kocemba I, Jedrzejewska WM, Szychowska A, et al. (2007) The properties of barium stannate and aluminum oxide-based gas sensor The role of Al2O3 in this system. Sensor Actuat B-Chem 121: 401–405.
    [6] Alves CFM, Soraia CS, Limaa HSH, et al. (2009) Influence of the modifier on the short and long range disorder of stannate perovskites. J Alloy Compd 476: 507–512.
    [7] Bouhemadou A, Haddadi K (2010) Structural, elastic, electronic and thermal properties of the cubic perovskite-type BaSnO3. Solid State Sci 12: 630–636.
    [8] Wei XY, Feng YJ, Hang LM, et al. (2005) Abnormal CV curve and clockwise hysteresis loop in ferroelectric barium stannate titanate ceramics. Mater Sci Eng B-Adv 120: 64–67.
    [9] Singh S, Singh P, Parkash O, et al. (2010) Structural and relaxor behavior of (Ba1-xLax)(Ti0.85Sn0.15)O3 ceramics obtained by solid state reaction. J Alloy Compd 493: 522–528.
    [10] Omeiri S, Hadjarab B, Bouguelia A, et al. (2010) Electrical, optical and photoelectrochemical properties of BaSnO applications to hydrogen evolution. J Alloy Compd 505: 592–597.
    [11] Cullity DB (1956) Elements of X-ray diffraction, Addison-wesley Publishing Company, INC. Reading, Masachusetts.
    [12] James KK, Aravind A, Jayaraj MK (2013) Structural, optical and magnetic properties of Fe-doped bariumstannate thin films grown by PLD. Appl Surf Sci 282: 121–125.
    [13] K?ferstein R, Abicht HP, Woltersdorf J, et al. (2006) Phase evolution of a barium tin 1,2-ethanediolato complex to barium stannate during thermal decomposition. Thermochim Acta 441: 176–183.
    [14] Charles MW, Nick H, Gregory ES (1989) Physical Properties of Semiconductors, Prentice-Hall, Englewood Cliffs, New Jersey Edition.
    [15] Vidya S, Rejith PP, Annamma J, et al. (2011) Electrical, optical and vibrational characteristics of nano structured yttrium barium stannous oxide synthesized through a modified combustion method. Mater Res Bull 46: 1723–1728.
    [16] K?fersteina R, Yakuphanoglub F (2010) Semiconducting properties of Ge-doped BaSnO3 ceramic. J Alloy Compd 506: 678–682.
    [17] Maity A, Mukherjee S, Chaudhuri MG, et al. (2015) Phase evaluation, microscopy and band gap of Fe-doped nanocrystalline BaSnO3 by solid state sintering assisted with agate mortar activation. Int J Current Eng Tech 5: 3829–3834.
    [18] Moss TS (1954) Pceedings of the Physical Society, London, Section B, 67: 775.
    [19] Arif B (2015) Determination of optical constants of ZnO growth by PECVD Method. J Mater Electron Dev 1: 28–32.
    [20] Aksoy S, Ruzgar S (2015) Effect of Nitrogen on optical properties of ZnO film deposited by sol gel method. J Mater Electron Dev 1: 33–37.
    [21] Udawatte CP, Kakihana M, Yoshimura M (1998) Preparation of pure perovskite-type BaSnO3 powders by the polymerized complex method at reduced temperature. Solid State Ionics 108: 23–30.
    [22] Du FT, Cui B, Cheng HL, et al. (2009) Synthesis, characterization, and dielectric properties of Ba(Ti1-xSnx)O3 nanopowders and ceramics. Mater Res Bull 44: 1930–1934.
    [23] Li HB, Tang WY, Luo JL, et al. (2010) Fabrication of porous BaSnO3 hollow architectures using BaCO3@SnO2 core-shell nanorods as precursors. Appl Surf Sci 257: 197–202.
    [24] Cerda J, Arbiol J, Diaz R, et al. (2002) Synthesis of perovskite-type BaSnO3 particles obtained by a new simple wet chemical route based on a sol-gel process. Mater Lett 56: 131–136.
    [25] Maity A, Mukherjee S, Chaudhuri MG, et al. (2015) Phase evaluation of pure nanocrystalline barium stannate by two different milling activations. Inter Ceram 64: 276–280.
    [26] Mukherjee S, Sarkar K, Mukherjee S (2015) Effect of Nickel and Cobalt doping on nano Bismuth Ferrite prepared by the chemical route. Inter Ceram 64: 38–43.
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