Lead zirconate titanate (PZT) films were deposited on nesa silica glass substrates by spin coating using a Pb(NO3)2–Zr(OC3H7n)4–Ti(OC3H7i)4 solution containing polyvinylpyrrolidone and acetylacetone. The coating solution had stable viscosity for over 1300 h at room temperature. Single-layer PZT films as thick as 0.75 μm could be obtained via single-step spin coating with successive gel film heat treatments at 80, 300, and 700 °C. The fired films were optically transparent and crack free, exhibiting P–E hysteresis loops with remanent polarization of 24.6±1.6 μC cm−2 and coercive field of 95.6±9.8 kV cm−1.
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Takenaka et al. (2001) studied this question.
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