Ferroelectricity of lanthanum-modified lead titanate thin films obtained by a diol-based sol-gel method

1999 ◽  
Vol 68 (5) ◽  
pp. 583-592 ◽  
Author(s):  
M. Algueró ◽  
M.L. Calzada ◽  
C. Quintana ◽  
L. Pardo
1992 ◽  
Vol 271 ◽  
Author(s):  
M. KuWabAra ◽  
T. Kuroda ◽  
S. Takahashi ◽  
T. Azuma

ABSTRACTBarium titanate, lead titanate and barium-lead titanate thin films were prepared by the sol-gel method using metal alkoxides on metallic conducting BaPbO3 ceramic substrates. Thin films were deposited on the polished surfaces of the substrates by spin coating solutions containing Ba(OC2H4OCH3)2, Pb(OCOCH3)2 and Ti(O-iC3H7)4 and methoxyethanol. The gel films were then fired at appropriate temperatures to yield ceramic thin films. A 0.50 µm-thick BaTio3 film showed a dielectric constant of 280 and tan ° of 3% at 1kHz with no distinguishable peak of dielectric constant at any temperature between 20°C and 200°C. Both PbTiO3 (0.75 µm thick) and Ba0.7Pb0.3 (0.2 µm thick) films, on the other hand, showed a distinguishable peak of dielectric constant at their Curie point with a rather deformed P-E hysteresis loop at room temperature.


2013 ◽  
Vol 832 ◽  
pp. 379-383 ◽  
Author(s):  
Nurbaya Zainal ◽  
Habibah Zulkefle ◽  
Mohamad Rusop

Lead titanate thin films were successfully prepared using a simple sol-gel method. In the present study extra Pb excess was not taken into consideration in such a way that the ratio of Pb:Ti is 1:1. Different molar concentration (0.1, 0.2, 0.3, 0.4, and 0.5) involved in this study and it was found that the solutions increased in acidic level by the increment of molar concentration that being measured by pH and conductivity meter (JENWAY-3540). It also indicated that the solutions were electrically resistive at low concentration which might due to the existence of lead and oxygen ionic bonding. The solutions were then deposited onto cleaned glass substrate by spin coating technique indeed to have better thin film homogeneity at room temperature. The prepared thin films were characterized on electrical property considering the resistivity measured by solar simulator (BUKOH KEIKI EP-2000). After that structural and physical property of thin films were observed by atomic force microscopy (Park System, XE-100).


1997 ◽  
Vol 8 (1-3) ◽  
pp. 725-728
Author(s):  
F. Carmona ◽  
M. L. Calzada ◽  
R. Sirera ◽  
J. Mendiola

2011 ◽  
Vol 10 (2) ◽  
pp. 187-192 ◽  
Author(s):  
Ramona-Crina Suciu ◽  
Marcela Corina Rosu ◽  
Teofil Danut Silipas ◽  
Emil Indrea ◽  
Violeta Popescu ◽  
...  

2014 ◽  
Vol 23 (4) ◽  
pp. 047805 ◽  
Author(s):  
Meng-Meng Cao ◽  
Xiao-Ru Zhao ◽  
Li-Bing Duan ◽  
Jin-Ru Liu ◽  
Meng-Meng Guan ◽  
...  

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