Abstract
In this work, Sr and Ti doped BiFeO3 (bismuth ferrite) compositions with dopant x = 0.00 and x = 0.10 have been synthesized by conventional solid-state-reaction method. X-ray diffraction patterns of the pure and Sr and Ti modified BiFeO3 samples with x = 0.10 have shown single phase formation. Rietveld refinement of X-ray diffraction data for both the samples has revealed Rhombohedral structural symmetry with R3c space group. Fourier-transform infrared spectroscopy spectra, recorded in the range 1000–400 cm−1 show shift in the position of a broad hump at higher wave number side with x which may be attributed to the stretching of Bi–O and Fe–O bonds due to doping. UV–visible spectra (ultraviolet-visible spectroscopy) in the range 300–800 nm have revealed a slight increase in the band gap with substitution.
Acknowledgment
Mr. Pushpender Chouhan is thankful to Department of Physics Materials Science and Engineering, Jaypee Institute of Information Technology (JIIT), Noida for providing Institute Research Assistantship.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: None declared.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
References
1. Sharma, S., Singh, V., Kotnala, R. K., Dwivedi, R. K. Comparative studies of pure BiFeO3 prepared by sol-gel versus conventional solid-state-reaction method. J. Mater. Sci. Mater. Electron. 2014, 25, 1915. https://doi.org/10.1007/s10854-014-1820-7.Search in Google Scholar
2. Arora, M., Chauhan, S., Sati, P. C., Kumar, M. Effect of non-magnetic ions substitution on structural, magnetic and optical properties of BiFeO3 nanoparticles. J. Supercond. Nov. Magn. 2014, 27, 1867. https://doi.org/10.1007/s10948-014-2521-4.Search in Google Scholar
3. Meyer, R., Waser, R. Resistive donor-doped SrTiO3 sensors: I, basic model for a fast sensor response. Sens. Actuators B: Chem. 2004, 101, 335–345.10.1016/j.snb.2004.04.004Search in Google Scholar
4. Voigts, F., Damjanović, T., Borchardt, G., Argirusis, C., Maus-Friedrichs, W. Synthesis and characterization of strontium titanate nanoparticles as potential high temperature oxygen sensor material. J. Nanomater. 2006, 2006, 063154. https://doi.org/10.1155/JNM/2006/63154.Search in Google Scholar
5. Sharma, S., Singh, V., Dwivedi, R. K., Ranjan, R., Anshul, A., Amritphale, S. S., Chandra, N. Phase transformation, improved ferroelectric and magnetic properties of (1-x) BiFeO3-xPb(Zr0.52Ti0.48)O3 solid solutions. J. Appl. Phys. 2014, 115, 224106. https://doi.org/10.1063/1.4882067.Search in Google Scholar
6. Turnock, A. C., Eugster, H. P. Multiferroics: a magnetic twist for ferroelectricity. J. Petrol. 1962, 3, 533. https://doi.org/10.1038/nmat1804.Search in Google Scholar PubMed
7. Sharma, S., Singh, V., Kotnala, R. K., Dwivedi, R. K. Effect of Zr/Ti ratio on structural, vibrational, magnetic and dielectric properties of (0.95)PbZrxTi1-xO3-(0.05) BiFeO3 ceramics. J. Mater. Sci. Mater. Electron. 2014, 25, 2697. https://doi.org/10.1007/s10854-014-1931-1.Search in Google Scholar
8. Ueda, K., Tabata, H., Kawai, T. Coexistence of ferroelectricity and ferromagnetism in BiFeO3–BaTiO3 thin films at room temperature. Appl. Phys. Lett. 1999, 75, 555. https://doi.org/10.1063/1.124420.Search in Google Scholar
9. Itoh, N., Shimura, T., Sakamoto, W., Yogo, T. Fabrication and characterization of BiFeO3–BaTiO3 ceramics by solid state reaction. Ferroelectrics 2007, 356, 19–23. https://doi.org/10.1080/00150190701508860.Search in Google Scholar
10. Hang, Q., Xing, Z., Zhu, X., Yu, M., Song, Y., Zhu, J., Liu, Z. Dielectric properties and related ferroelectric domain configurations in multiferroic BiFeO3–BaTiO3 solid solutions. Ceram. Int. 2012, 38, S411–S414. https://doi.org/10.1016/j.ceramint.2011.05.022.Search in Google Scholar
11. Cheng, J.-R., Li, N., Cross, L. E. Structural and dielectric properties of Ga-modified BiFeO3–PbTiO3 crystalline solutions. J. Appl. Phys. 2003, 94, 5153. https://doi.org/10.1063/1.1609655.Search in Google Scholar
12. Yuan, G. L., Or, S. W., Liu, J. M., Liu, Z. G. Appl. Phys. Lett. 2006, 88, 062905. https://doi.org/10.1063/1.2266992.Search in Google Scholar
13. Ravindran, P., Vidya, R., Kjekshus, A., Fjellvag, H., Eriksson, O. Phys. Rev. B 2006, 74, 224412. https://doi.org/10.1103/PhysRevB.74.224412.Search in Google Scholar
14. Bhushan, B., Wang, Z., Tol, J. V., Dalal, N. S., Basumallick, A., Vasanthacharya, N. Y., Kumar, S., Das, D. J. Am. Ceram. Soc. 2012, 95, 1985. https://doi.org/10.1111/j.1551-2916.2012.05132.x.Search in Google Scholar
15. Sati, P. C., Arora, M., Chauhan, S., Kumar, M., Chhoker, S. Structural, magnetic, vibrational and impedance properties of Pr and Ti codoped BiFeO3 multiferroic ceramics. Ceram. Int. 2014, 40, 7805. https://doi.org/10.1016/j.ceramint.2013.12.124.Search in Google Scholar
16. Pankove, J. I. Optical Processes in Semiconductors; Dover Publications Inc.: New York, 1975.Search in Google Scholar
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