Electrophoretic Deposition Ba0.65Sr0.35TiO3 Thick Films for Tunable Microwave Devices


Article Preview

Pure barium strontium titanate (Ba0.65Sr0.35TiO3) and MnO2-modified barium strontium titanate (Ba0.65Sr0.35TiO3-MnO2) thick films were fabricated by electrophoretic deposition technique. The structures and morphologies of the films were analyzed. The dielectric measurements were conducted on metal-insulator-metal capacitors using platinum as the bottom electrodes and gold as the top electrodes. The dielectric constants and dissipation factors of Ba0.65Sr0.35TiO3 and Ba0.65Sr0.35TiO3-15wt% MnO2 thick films were measured at a frequency of 1 MHz. The tunabilities of 12.5% and 9.3% were obtained for Ba0.65Sr0.35TiO3 and Ba0.65Sr0.35TiO3-MnO2 thick films under an applied electric field of 15 kV/cm, respectively. The dielectric properties of the present thick films were suitable for tunable microwave device applications.



Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong




H. Xue et al., "Electrophoretic Deposition Ba0.65Sr0.35TiO3 Thick Films for Tunable Microwave Devices", Key Engineering Materials, Vols. 336-338, pp. 111-113, 2007

Online since:

April 2007




[2] L. Davis and L.G. Rubin: J. Appl. Phy. Vol. 24(1953), p.1195.

[3] B. Su and T.W. Button: J. Eur. Ceram. Soc. Vol. 21(2001), p.2641.

[4] L.C. Sengupta, S. Stowell, E. Ngo and S. Sengupta: Integ. Ferro. Vol. 13(1996), p.203.

[5] F. Zimmermann, M. Voigts, C. Weil, R. Jakoby, P. Wang and W. Menesklou: J. Eur. Ceram. Soc. Vol. 21(2001), pp. (2019).

[6] R.G. Geyer, J.H. Grosvenor and J. Synowsynski: Ceram. Trans. Vol. 36(1999), p.106.