Physical and Electrical Properties of (Ba_0.6,Sr_0.4)TiO₃ Ferroelectric Thick Films Prepared by Aerosol Deposition Technique

Abstract:

(Ba0.6,Sr0.4)TiO3 thick films have been fabricated on various substrates and their physical and electrical properties were analyzed. The effect of primary powder condition on the quality of the BST fabricated films using aerosol deposition technique has been investigated keeping in mind results shown in the literature for BST films fabricated with classical deposition techniques. Presence of carbonates and TiO2 has been demonstrated by XPS analysis and the leakage current behavior has linked to the presence of TiO2 at the grain boundaries. The films showed good insulating properties, with small leakage densities being on the order of 10-6 A/cm2 for an applied electric field of 150 kV/cm.

• Periodical: Key Engineering Materials (Volume 388)
• Pages: 163-166
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.388.163
• Online since: September 2008
• Authors: Daniel Popovici, Hiroki Tsuda, Jae Hyuk Park, Jun Akedo, Masanori Okuyama
• Keywords: Aerosol Deposition, BST, UV-PYS, XPS

References

[1] J. Akedo, J. Am. Ceram. Soc., 89 (6) (2006), p.1834.

[2] Y. Imanaka, N. Hayashi, M. Takenouchi and J. Akedo, J. Eur. Ceram. Soc., 27 (2007), p.2789.

[3] S. Geng, S. Zhang and H. Onishi, Materials Technology, 17 (4) (2002).