Ferroelectric and piezoelectric properties of lead-free BaTiO3 doped Bi0.5Na0.5TiO3 thin films from metal-organic solution deposition

2012 ◽  
Vol 540 ◽  
pp. 204-209 ◽  
Author(s):  
Susant Kumar Acharya ◽  
Sang-Kwon Lee ◽  
Jung-Hwan Hyung ◽  
Yun-Ho Yang ◽  
Bok-Hee Kim ◽  
...  
2015 ◽  
Vol 815 ◽  
pp. 89-93
Author(s):  
Yuan Yuan Zhang ◽  
Xiao Dong Tang ◽  
Gen Shui Wang ◽  
Xian Lin Dong

Highly (100)-oriented LaNiO3 (LNO) thin films were prepared on p-type Si (100) substrates by metal organic solution deposition (MOSD). The LNO thin films were driven by series precursor solutions with different ratio of acetic acid to deionized water (Raaw) and pH values. The dependences of viscosity, pH value and the thermal property of the gel-derived powders of the precursor solution on Raaw values were systematically investigated. AFM images showed that Raaw can dramatically influence the surface roughness. When Raaw changed from 7:1 to 1:1, the surface roughness decreased from 3.695 nm to 1.488 nm. The resistivities of all the films are less than 2.1×10-3Ω·cm. It shows that the precursor solution has strong effect on the microstructure of the thin films and relatively slight effect on the resistivity.


2004 ◽  
Vol 58 (5) ◽  
pp. 813-816 ◽  
Author(s):  
Yuehua Wang ◽  
Guoding Xu ◽  
Xuejin Zhang ◽  
Yan Feng ◽  
Weishi Tang ◽  
...  

1998 ◽  
Vol 541 ◽  
Author(s):  
W. Pérez ◽  
E Ching-Prado ◽  
P.S. Dobal ◽  
A. Reynés-Figueroa ◽  
R.S. Katiyar ◽  
...  

AbstractThin films of ferroelectric (SrBi2Ta2O9)x(Bi3TiNbO9)1−x layered structure were prepared for x = 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0, by metal organic solution deposition method on Pt/TiO2/SiO2/Si substrates. The micro-Raman studies reveal that the samples are mostly homogeneous. The Raman sprectrum for the film with x = 0 shows bands around 60, 170, 232, 256, 337, 569, and 839 cm−1, which indicate Bi3TiNbO9 (BTN) formation. The prominent band around 839 cm−1, which is an A1g mode of the orthorombic symmetry, corresponds to symmetric stretching of the BO6 octahedra. The frequency of this band is found to shift significantly as SrBi2Ta2O9(SBT) material is added to the BTN compound. In this paper, the evolution of the Raman bands with the inclusion of SBT material are presented and discussed. Finally, The Raman spectra of SBT- BTN films are compared with those obtained in SBT-BTN bulk ceramics.


2006 ◽  
Vol 301 ◽  
pp. 53-56 ◽  
Author(s):  
Kiyotaka Tanaka ◽  
Kazuyuki Suzuki ◽  
Tatsuo Kimura ◽  
Kaori Nishizawa ◽  
Takeshi Miki ◽  
...  

Lead-free Ba(Ti1-xZrx)O3 (BTZ) thin films were fabricated on Pt(111)/Ti/SiO2/Si(100) substrates by the chemical solution deposition (CSD) process. The microstructure of the BTZ (x = 0.00 to 0.20) thin films was improved by additional sintering process, and their crystallite sizes were increased in each composition. The dielectric constant er and piezoelectric constant d33 of the BTZ thin films depended on the crystallite size. We give a guide for further investigation to improve the characteristics of BTZ thin films.


2012 ◽  
Vol 02 (04) ◽  
pp. 1250021 ◽  
Author(s):  
LINGYAN WANG ◽  
WEI REN ◽  
PHOI CHIN GOH ◽  
KUI YAO ◽  
PENG SHI ◽  
...  

Lead-free ferroelectric K0.5Na0.5NbO3 (KNN) films with different thicknesses were prepared by polyvinlypyrrolidone (PVP)-modified chemical solution deposition (CSD) method. Their residual stresses were studied with two methods of X-ray diffraction (XRD) and nanoindentation fracture. It was found that the tensile stress occurs in KNN films with small thickness of 1.3 μm after all kinds of stresses were neutralized, which is mainly originated from the interaction across grain boundaries. With increasing the thickness to 2.5 μm and above it, the residual stress changed from tensile stresses to compressive stresses, and the compressive stress decreased with the thickness increased. These results could explain why a thicker KNN film can show improved electrical properties and the larger the thickness, the better the ferroelectric and piezoelectric properties.


2010 ◽  
Vol 97 (21) ◽  
pp. 212901 ◽  
Author(s):  
D. Y. Wang ◽  
N. Y. Chan ◽  
S. Li ◽  
S. H. Choy ◽  
H. Y. Tian ◽  
...  

2013 ◽  
Vol 52 (40) ◽  
pp. 14328-14334 ◽  
Author(s):  
Juan Ramos-Cano ◽  
Mario Miki-Yoshida ◽  
André Marino Gonçalves ◽  
José Antônio Eiras ◽  
Jesús González-Hernández ◽  
...  

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