Nanointerfacial Layer Effect on Dielectric and Piezoelectric Responses in Chemical Solution-Derived Lead-Free Alkaline Niobate-Based Thin Films

2021 ◽  
Author(s):  
Sung Sik Won ◽  
Masami Kawahara ◽  
Hyunseung Kim ◽  
Joonhee Lee ◽  
Chang Kyu Jeong ◽  
...  
Keyword(s):  
Thin Films ◽  
Lead Free ◽  
Chemical Solution ◽  
Layer Effect

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.

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

scholarly journals Stable dielectric response in lead-free relaxor K0.5Na0.5NbO3–SrTiO3 thin films

2014 ◽  
Vol 04 (02) ◽  
pp. 1450012 ◽  
Author(s):  
A. Eršte ◽  
A. Kupec ◽  
B. Kmet ◽  
B. Malič ◽  
V. Bobnar
Keyword(s):  
Thin Films ◽  
Dielectric Response ◽  
Chemical Solution Deposition ◽  
Lead Free ◽  
Deposition Method ◽  
Chemical Solution ◽  
Structural Investigations ◽  
Solution Deposition ◽  
Chemical Solution Deposition Method ◽  
Fatigue Endurance

K 0.5 Na 0.5 NbO 3– SrTiO 3 (KNN–STO) thin films of different compositions were prepared by the chemical solution deposition method. While structural investigations confirmed the formation of perovskite solid solution in all developed films, dielectric experiments revealed a relaxor broad dispersive maximum in the sample with 15 mol% of STO, exhibiting for a thin film high ε′ ~ 330 at ~ 210 K. The history-dependent effects of this relaxor sample were compared to those of KNN–STO ceramics and, furthermore, shown to be much weaker than in widely used lead-based ferroelectric and relaxor ( Pb , La )( Zr , Ti ) O 3 ceramics: While fatigue endurance results revealed a slight drop in polarization after 3 × 105 switching cycles, the results of aging of the dielectric constant revealed no notable decrease in its values after 106 s.

Lead-free piezoelectric thin films of Mn-doped NaNbO3–BaTiO3 fabricated by chemical solution deposition

2010 ◽  
Vol 518 (15) ◽  
pp. 4256-4260 ◽  
Author(s):  
Wataru Sakamoto ◽  
Yu-ichi Hamazaki ◽  
Hiroshi Maiwa ◽  
Makoto Moriya ◽  
Toshinobu Yogo
Keyword(s):  
Thin Films ◽  
Chemical Solution Deposition ◽  
Lead Free ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Piezoelectric Thin Films ◽  
Mn Doped

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.

Sign in / Sign up

Export Citation Format

Share Document