Preparation and properties of Bi4-xLaxTi3O12 thin films by chemical solution deposition
作者： Di Wu , Aidong Li , Tao Zhu , Zhiguo Liu , Naiben Ming
DOI: 10.1080/00150190108015989
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摘要: Abstract Bi4-xLaxTi3O12 (BLTx) thin films were prepared by chemical solution deposition and characterized X-ray diffraction, electron probe micro-analysis, electric optical measurements. Layered perovskite BLTx films, with compositions close to their respective nominal compositions, can be obtained 180 s annealing at a temperature as low 650 °C. Hysteresis measurement reveals that BLT0.75 have the largest remanent polarization, 12.3 μC/cm2 200 kV/cm maximum field for °C annealed films. Fatigue-free characteristic of is observed high field, frequency cycling. Optical transmittance measurements show absorption edge shifts lower wavenumbers increasing La substitution.
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