scholarly journals Phase Transitions, Dielectric and Ferroelectric Properties of Lead-free NBT-BT Thin Films

10.5772/52395 ◽  
2012 ◽  
Author(s):  
N. D. ◽  
R. Birjega ◽  
A. Andrei ◽  
M. Dinescu ◽  
F. Craciun ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transitions ◽  
Ferroelectric Properties ◽  
Lead Free

Influence of Excess Potassium on Structural and Ferroelectric Properties of Lead-Free Bi0.5K0.5TiO3 Thin Films

2021 ◽  
Vol 21 (4) ◽  
pp. 2681-2686
Author(s):  
Nguyen Ngoc Minh ◽  
Bui Van Dan ◽  
Nguyen Duc Minh ◽  
Guus Rijnders ◽  
Ngo Duc Quan
Keyword(s):  
Thin Films ◽  
Chemical Solution Deposition ◽  
Single Phase ◽  
Ferroelectric Properties ◽  
Lead Free ◽  
Chemical Solution ◽  
Ferroelectric Films ◽  
Solution Deposition ◽  
Si Substrates ◽  
Excess Amount

Lead-free Bi0.5K0.5TiO3 (BKT) ferroelectric films were synthesized on Pt/Ti/SiO2/Si substrates via the chemical solution deposition. The influence of the excess potassium on the microstructures and the ferroelectric properties of the films was investigated in detail. The results showed that the BKT films have reached the well-crystallized state in the single-phase perovskite structure with 20 mol.% excess amount of potassium. For this film, the ferroelectric properties of the films were significantly enhanced. The remnant polarization (Pr) and maximum polarization (Pm) reached the highest values of 9.4 μC/cm2 and 32.2 μC/cm2, respectively, under the electric field of 400 kV/cm.

Tuning electrical properties and phase transitions through strain engineering in lead-free ferroelectric K0.5Na0.5NbO3-LiTaO3-CaZrO3 thin films

2019 ◽  
Vol 115 (20) ◽  
pp. 202901
Author(s):  
Liqiang Xu ◽  
Feng Chen ◽  
Feng Jin ◽  
Da Lan ◽  
Lili Qu ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transitions ◽  
Electrical Properties ◽  
Strain Engineering ◽  
Lead Free

Enhanced ferroelectric properties of LiNbO3 substituted Na0.5K0.5NbO3 lead-free thin films grown by chemical solution deposition

2008 ◽  
Vol 93 (21) ◽  
pp. 212905 ◽  
Author(s):  
Chang Won Ahn ◽  
Euh Duck Jeong ◽  
Sun Young Lee ◽  
Hai Joon Lee ◽  
Sun Hee Kang ◽  
...  
Keyword(s):  
Thin Films ◽  
Chemical Solution Deposition ◽  
Ferroelectric Properties ◽  
Lead Free ◽  
Chemical Solution ◽  
Solution Deposition

Temperature and composition dependent phase transitions of lead-free piezoelectric (Bi0.5Na0.5)TiO3–BaTiO3 thin films

2017 ◽  
Vol 19 (30) ◽  
pp. 19992-19997 ◽  
Author(s):  
Zhen Zhou ◽  
Jin Luo ◽  
Wei Sun ◽  
Jing-Feng Li
Keyword(s):  
Thin Films ◽  
Phase Diagram ◽  
Phase Transitions ◽  
Lead Free ◽  
Structure And Properties ◽  
Temperature Dependent

Composition and temperature dependent transitions of structure and properties of BNT–BT films were discussed and a phase diagram was proposed.

Lead Free Bi1/2Na1/2TiO3-CoFe2O4 Magnetoelectric Nanoparticulate Composite Thin Films Prepared by Chemical Solution Deposition Method

2018 ◽  
Vol 765 ◽  
pp. 30-33
Author(s):  
Vinod Kumar ◽  
Mintu Tyagi
Keyword(s):  
Thin Films ◽  
Chemical Solution Deposition ◽  
Ferroelectric Properties ◽  
Lead Free ◽  
Nanocomposite Films ◽  
Chemical Solution ◽  
Secondary Phases ◽  
Solution Deposition ◽  
Great Opportunity ◽  
Chemical Solution Deposition Method

Magnetoelectric (1−x) BNT−xCFO nanoparticulate thin films with (x= 0, 0.1, 0.2, 0.3) were fabricated by a chemical solution deposition technique. The X-ray diffraction shows that no other secondary phases are observed. Transmission electron microscope (TEM) revels that CFO nanoparticles were well distributed in matrix of BNT. The nanocomposite films exhibit both good magnetic and ferroelectric properties at room temperature (R-T), as well as enhanced magnetoelectric coupling. The composite withx= 0.2, showed the large value ofMEvoltage coefficient (αE) ~ 163 mV/cmOe. TheseMEcomposites provide a great opportunity as potential lead free systems forMEdevices.

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