Structural, electrical and ferroelectric properties of acceptor-doped Na0.5Bi4.5Ti4O15 thin films prepared by a chemical solution deposition method

2015 ◽  
Vol 41 (1) ◽  
pp. 1567-1571 ◽  
Author(s):  
Jin Won Kim ◽  
Chinnambedu Murugesan Raghavan ◽  
Sang Su Kim
Keyword(s):  
Thin Films ◽  
Chemical Solution Deposition ◽  
Ferroelectric Properties ◽  
Deposition Method ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Chemical Solution Deposition Method

An optimized process for fabrication of SrBi2Ta2O9 thin films using a novel chemical solution deposition technique

1999 ◽  
Vol 14 (11) ◽  
pp. 4395-4401 ◽  
Author(s):  
Seung-Hyun Kim ◽  
D. J. Kim ◽  
K. M. Lee ◽  
M. Park ◽  
A. I. Kingon ◽  
...  
Keyword(s):  
Thin Films ◽  
Chemical Solution Deposition ◽  
Low Voltage ◽  
Ferroelectric Properties ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Chemical Solution Deposition Method ◽  
Low Leakage ◽  
Low Leakage Current ◽  
Voltage Saturation

Ferroelectric SrBi2Ta2O9 (SBT) thin films on Pt/ZrO2/SiO2/Si were successfully prepared by using an alkanolamine-modified chemical solution deposition method. It was observed that alkanolamine provided stability to the SBT solution by retarding the hydrolysis and condensation rates. The crystallinity and the microstructure of the SBT thin films improved with increasing annealing temperature and were strongly correlated with the ferroelectric properties of the SBT thin films. The films annealed at 800 °C exhibited low leakage current density, low voltage saturation, high remanent polarization, and good fatigue characteristics at least up to 1010 switching cycles, indicating favorable behavior for memory applications.

Fabrication of V-Substituted (Bi,M)4Ti3O12 [M = Lanthanoids] Thin Films by Chemical Solution Deposition Method

2001 ◽  
Vol 688 ◽  
Author(s):  
H. Uchida ◽  
H. Yoshikawa ◽  
I. Okada ◽  
H. Matsuda ◽  
T. Iijima ◽  
...  
Keyword(s):  
Thin Films ◽  
Chemical Solution Deposition ◽  
Bismuth Titanate ◽  
Ferroelectric Properties ◽  
Ferroelectric Materials ◽  
Processing Temperature ◽  
Chemical Solution ◽  
Si Substrate ◽  
Solution Deposition ◽  
Chemical Solution Deposition Method

AbstractBismuth titanate (Bi4Ti3O12; BIT) -based ferroelectric materials are proposed from the view of the “Site-engineering”, where the Bi-site ions are substituted by lanthanoid ions (La3+ and Nd3+) and Ti-site ions by other ions with higher charge valence (V5+). In the present study, influences of vanadium (V) - substitution for (Bi,M)4Ti3O12 thin films [M = lanthanoid] on the ferroelectric properties are evaluated. V-substituted (Bi,M)4Ti3O12 films have been fabricated using a chemical solution deposition (CSD) technique on the (111)Pt/Ti/SiO2/(100)Si substrate. Remnant polarization of (Bi,La)4Ti3O12 and (Bi,Nd)4Ti3O12 films has been improved by the V-substitution independent of the coercive field. The processing temperature of BLT and BNT films could also be lowered by the V-substitution.

Epitaxial growth of PbZr0.5Ti0.5O3 thin films on (001) LaAlO3 by the chemical solution deposition method

1999 ◽  
Vol 14 (10) ◽  
pp. 4004-4010 ◽  
Author(s):  
J. H. Kim ◽  
F. F. Lange
Keyword(s):  
Thin Films ◽  
Chemical Solution Deposition ◽  
Driving Force ◽  
Fluorite Phase ◽  
Deposition Method ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Boundary Area ◽  
Pzt Thin Films ◽  
Chemical Solution Deposition Method

Epitaxial PbZr0.5Ti0.5O3 (PZT) thin films were grown on (001) LaAlO3 substrates (∼6.1% lattice mismatch) by the chemical solution deposition method. The sequence of epitaxy during heating between 375 and 700 °C/1h was characterized by x-ray diffraction and transmission electron microscopy. At approximately 375 °C/1h, a nanocrystalline metastable fluorite phase of PZT was formed from the pyrolyzed amorphous precursor. At higher temperatures (400–425 °C/1h), thermodynamically stable PZT crystallites were first observed at the interface; with increasing higher temperatures, these nuclei grew across the interface and through the film toward the surface by consuming the metastable nanocrystalline fluorite grains. PZT thin films annealed above ∼500 °C/1h were observed to be dense with an epitaxial orientation relationship of [100](001)PZT‖[100](001)LAO. The metastable nanocrystalline fluorite to the stable single-crystal perovskite transformation gives an extra driving force by providing an additional decrease in free energy in addition to a driving force from the elimination of grain boundary area for epitaxy.

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