Growth and properties of chemical solution deposited BiInO3–PbTiO3 films

Ko, S. W.; Yeo, H. G.; Trolier-McKinstry, S.
October 2009
Applied Physics Letters;10/19/2009, Vol. 95 Issue 16, p162901
Academic Journal
The dielectric, ferroelectric, and piezoelectric properties of chemical solution deposited xBiInO3–(1-x)PbTiO3 (0.10≤x≤0.35) thin films on platinized silicon substrates were investigated. Using a PbTiO3 seed layer, phase pure xBiInO3–(1-x)PbTiO3 (0.10≤x≤0.35) thin films were prepared. For a 470 nm thick 0.15BiInO3–0.85PbTiO3 film, the room temperature permittivity was 650, while the dielectric loss tangent was below 2%. The coercive field and remanent polarization were 73 kV/cm and 22 μC/cm2, respectively. The ferroelectric transition temperatures of the xBiInO3–(1-x)PbTiO3 (x=0.10–0.20) films were all in excess of 550 °C. For x=0.15, the e31,f piezoelectric coefficient was -2.7 C/m2.


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