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Non-ohmic properties of CaCu3Ti4O12 thin films deposited By RF-sputtering

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Abstract

Calcium copper titanate (CaCu3Ti4O12, CCTO), thin films with polycrystalline nature have been deposited by RF sputtering on Pt/Ti/SiO2/Si (100) substrates at a room temperature followed by annealing at 600 °C for 2 h in a conventional furnace. The CCTO thin film present a cubic structure with lattice parameter a = 7.379 ± 0.001 Å free of secondary phases. Dielectric spectroscopy was employed to examine the polycrystalline behaviour of CCTO material and the mechanisms responsible for the barrier-layer capacitances associated with Schottky-type barriers and the non-Ohmic properties. The film presents an electric breakdown field (Eb = 203 V cm−1) and then nonlinear coefficient (α = 6), which is even lower than that of the ZnO and SnO2 based varistors The observed electrical features of CCTO thin films are highly dependent on the [CaO12], [CaO4], [CuO11], [CuO11Vo x] and [TiO5·\(V_{O}^{ \bullet }\)] clusters.

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References

  1. D.R. Clarke, Varistor ceramics. J. Am. Ceram. Soc. 82, 485–502 (1999)

    Article  Google Scholar 

  2. S.Y. Chung, I. Kim, S.L. Kang, Strong nonlinear current–voltage behaviour in perovskite-derivative calcium copper titanate. Nat. Mater. Lett. 3, 774–776 (2004)

    Article  Google Scholar 

  3. D.C. Sinclair, T.B. Adams, F.D. Morrison, A.R. West, CaCu3Ti4O12: one-step internal barrier layer capacitor. Appl. Phys. Lett. 80, 2153–2155 (2002)

    Article  Google Scholar 

  4. L. Mei, H. Hsiang, Effect of copper-rich secondary phase at the grain boundaries on the varistor properties of CaCu3Ti4O12 ceramic. J. Am. Ceram. Soc. 91, 3735–3737 (2008)

    Article  Google Scholar 

  5. J. Li, M.A. Subramanian, H.D. Rosenfeld, C.Y. Jones, B.H. Toby, A.W. Sleight, Clues to the giant dielectric constant of CaCu3Ti4O12 in the defect structure of SrCu3Ti4O12. Chem. Mater. 16, 5223–5225 (2004)

    Article  Google Scholar 

  6. T.B. Adams, D.C. Sinclair, A.R. West, Decomposition reactions in CaCu3Ti4O12 ceramics. J. Am. Ceram. Soc. 89, 2833–2838 (2006)

    Article  Google Scholar 

  7. S.Y. Chung, I.D. Kim,S.J.L. Kang, Strong nonlinear current–voltage behaviour in perovskite-derivative calcium copper titanate. Nat. Mater. 3, 774–778 (2004)

    Article  Google Scholar 

  8. C.C. Homes, T. Vogt, S.M. Shapiro, S. Wakimoto, M.A. Subramanian, A.P. Ramirez, Charge transfer in the high dielectric constant materials CaCu3Ti4O12 and CdCu3Ti4O12. Phys. Rev. B 67, 092106 (2003)

    Article  Google Scholar 

  9. L. He, J.B. Neaton, M.H. Cohen, D. Vanderbilt, C.C. Homes, First-principles study and lattice dielectric response of CaCu3Ti4O12. Phys. Rev. B 65, 214112 (2002)

    Article  Google Scholar 

  10. E.R. Leite, A.M. Nascimento, P.R. Bueno, E. Longo, J.A. Varela, The influence of sintering process and atmosphere on the non-ohmic properties of SnO2 based varistor. J. Mater. Sci. Mater. Electron. 10, 321–327 (1999)

    Article  Google Scholar 

  11. V.C. Sousa, M.R. Cássia-Santos, C.M. Barrado, M.R.D Bomio, E.R. Leite, J.A. Varela, E. Longo, Effect of atmosphere on the electrical properties of TiO2–SnO2 varistor systems. J. Mater. Sci. Mater. Electron. 15, 665–669 (2004)

    Article  Google Scholar 

  12. S.Y. Chung, I.D. Kim, S.J.L. Kang, Strong nonlinear current–voltage behaviour in perovskite-derivative calcium copper titanate. Nature 3, 774 (2004)

    Article  Google Scholar 

  13. R.A. Young, A. Sakthivel, T.S. Moss, C.O. Paiva-Santos, DBWS-9411—an upgrade of the DBWS*.* programs for Rietveld refinement with PC and mainframe computers. J. Appl. Crystallogr. 28, 366–367 (1995)

    Article  Google Scholar 

  14. P. Jha, P. Arora, A.K. Ganguli, Polymeric citrate precursor route to the synthesis of the high dielectric constant oxide CaCu3Ti4O12. Mater. Lett. 57, 2443–2446 (2003)

    Article  Google Scholar 

  15. C.R. Foschini, Tararam R., A.Z. Simões, L.S. Rocha, C.O.P. Santos, E. Longo, J.A. Varela, Rietveld analysis of CaCu3Ti4O12 thin films obtained by RF-sputtering. J. Mat. Sci. Mat. Electron. 27(1), 2175–2182 (2016)

    Article  Google Scholar 

  16. T. Li, R. Xue, J. Hao, Y. Xue, Z. Chen, The effect of calcining temperatures on the phase purity and electric properties of CaCu3Ti4O12 ceramics. J. Alloy Compd. 509(3), 1025–1028 (2011)

    Article  Google Scholar 

  17. C.R. Foschini, R. Tararam, A.Z. Simões, M. Cilense, E. Longo, J.A. Varela, CaCu3Ti4O12 thin films with non-linear resistivity deposited by RF-sputtering113, J. Alloy Compd. 574, 604–608 (2013)

    Article  Google Scholar 

  18. J.F. Moulder, W.F. Stickle, P.E. Sobol, K.D. Bomben, Handbook of X-ray Photoelectron Spectroscopy, (Perkin-Elmer Corporation, Physical Electronis Division, Eden Prairie, 1992)

    Google Scholar 

  19. P.R. Bueno, R. Tararam, P. Parra, E. Joanni, J.A. Varela, A polaronic stacking fault defect model for CaCu3Ti4O12 material: an approach for the origin of the huge dielectric constant and semiconducting coexistent features. J. Phys. D Appl. Phys. 42(5), 1–9 (2009)

    Article  Google Scholar 

  20. G. Deng, N. Xanthopoulos, P. Muralt, Chemical nature of colossal dielectric constant of CaCu3Ti4O12 thin film by pulsed laser deposition. Appl. Phys. Lett. 92, 172909 (2008)

    Article  Google Scholar 

  21. L. Ramajo, R. Parra, J.A. Varela, M.M. Reboredo, M.A. Ramirez, M.S. Castro, Influence of vanadium on electrical and microstructural properties of CaCu3Ti4O12/CaTiO3. J. Alloy Compd. 497, 349–353 (2010)

    Article  Google Scholar 

  22. R. Parra, R. Savu, L.A. Ramajo, M.A. Ponce, J.A. Varela, M.S. Castro, P.R. Bueno, E. Joanni, Sol–gel synthesis of mesoporous CaCu3Ti4O12 thin films and their gas sensing response. J. Solid State Chem. 183, 1209 (2010)

    Article  Google Scholar 

  23. P.R. Bueno, R. Tararan, R. Parra, E. Joanni, M.A. Ramírez, W.C. Ribeiro, E. Longo, J.A. Varela, A polaronic stacking fault defect model for CaCu3Ti4O12 material: an approach for the origin of the huge dielectric constant and semiconducting coexistent features. J. Phys. D Appl. Phys. 42, 055404 (2009)

    Article  Google Scholar 

  24. T.T. Fang, C.P. Liu, Evidence of the internal domains for inducing the anomalously high dielectric constant of CaCu3Ti4O12. Chem. Mater. 17, 5167–5171 (2005)

    Article  Google Scholar 

  25. J. Li, A.W. Sleight, M.A. Subramanian, Evidence for internal resistive barriers in a crystal of the giant dielectric constant material: CaCu3Ti4O12. Solid State Commun. 135, 260–262 (2005)

    Article  Google Scholar 

  26. A.K. Jonscher, Dielectric characterisation of semiconductors. Solid State Electron. 33, 737 (1990)

    Article  Google Scholar 

  27. P.R. Bueno, E.R. Leite, M.M. Oliveira, M.O. Orlandi, E. Longo, Role of oxygen at the grain boundary of metal oxide varistors: a potential barrier formation mechanism. Appl. Phys. Lett. 79, 48–50 (2001)

    Article  Google Scholar 

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Acknowledgements

The financial support of this research project by the Brazilian research funding agency FAPESP (Grant No. 2013/07296-2) is gratefully acknowledged.

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Authors and Affiliations

  1. Dept. de Eng. Mecânica, Faculdade de Engenharia de Bauru, Universidade Estadual Paulista, UNESP, Av. Eng. Luiz Edmundo C. Coube 14-01, Bauru, SP, CEP 17033-360, Brazil

    C. R. Foschini

  2. Instituto de Química, Universidade Estadual Paulista, UNESP, Rua Prof. Francisco Degni nº 55, Araraquara, SP, CEP 14800-900, Brazil

    M. Cilense & E. Longo

  3. Faculdade de Engenharia de Guaratinguetá, Universidade Estadual Paulista, UNESP, Av. Dr. Ariberto Pereira da Cunha, nº 333, Guaratinguetá, SP, CEP 12516-410, Brazil

    B. Hangai, C. S. Cavalcante & A. Z. Simões

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  1. C. R. Foschini
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  2. B. Hangai
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  3. C. S. Cavalcante
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  4. A. Z. Simões
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  5. M. Cilense
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  6. E. Longo
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Correspondence to A. Z. Simões.

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Foschini, C.R., Hangai, B., Cavalcante, C.S. et al. Non-ohmic properties of CaCu3Ti4O12 thin films deposited By RF-sputtering. J Mater Sci: Mater Electron 28, 15685–15693 (2017). https://doi.org/10.1007/s10854-017-7458-5

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