scholarly journals Nanostructure stabilization by low-temperature dopant pinning in multiferroic BiFeO3-based thin films produced by aqueous chemical solution deposition

2020 ◽  
Vol 8 (12) ◽  
pp. 4234-4245 ◽  
Author(s):  
Carlos Gumiel ◽  
Teresa Jardiel ◽  
David G. Calatayud ◽  
Thomas Vranken ◽  
Marlies K. Van Bael ◽  
...  
Keyword(s):  
Thin Films ◽  
Low Temperature ◽  
Chemical Solution Deposition ◽  
Single Phase ◽  
Aqueous Media ◽  
Processing Conditions ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Multiferroic Bifeo3

BiFeO3 single-phase thin films with an effective and tuneable multiferroic response are obtained in aqueous media by using mild processing conditions.

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.

STRATEGY FOR LOW-TEMPERATURE CRYSTALLIZATION OF TITANIUM-RICH PZT THIN FILMS BY CHEMICAL SOLUTION DEPOSITION

2008 ◽  
Vol 100 (1) ◽  
pp. 285-296 ◽  
Author(s):  
BARBARA MALIC ◽  
MIRA MANDELJC ◽  
GORAN DRAZIC ◽  
MIHA SKARABOT ◽  
IGOR MUSEVIC ◽  
...  
Keyword(s):  
Thin Films ◽  
Low Temperature ◽  
Chemical Solution Deposition ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Pzt Thin Films ◽  
Low Temperature Crystallization ◽  
Temperature Crystallization

Textured K0.5Na0.5NbO3 Thin Films by Aqueous Chemical Solution Deposition on SrTiO3 Substrates for MEMS Applications

2021 ◽  
Vol 1034 ◽  
pp. 111-116
Author(s):  
Ky Nam Pham ◽  
Trong Dai Vu ◽  
Dinh Nguyen Nguyen ◽  
Tien Dat Vu
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Chemical Solution Deposition ◽  
Piezoelectric Properties ◽  
Sintering Temperature ◽  
Processing Conditions ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Average Grain Size ◽  
High Degree

Na0.5K0.5NbO3 (KNN) thin films were fabricated on (100) oriented SrTiO3 substrates by spin coating a stable environmentally friendly aqueous KNN precursor. Homogeneous films with an average grain size down to 60 nm were observed after heat treatment at 900 °C. The high degree of texture was confirmed by XRD. The intensity of the KNN (100) reflection for films on (100) oriented substrates increased with increasing sintering temperature up to 900 °C. The ferroelastic and piezoelectric properties of the film was confirmed by PFM. Local piezoelectric properties of selected films will be discussed in relation to the processing conditions, microstructure and orientation of the substrate.

Effects of citric acid on properties of single phase CuAlO2 thin films derived by chemical solution deposition

2009 ◽  
Vol 487 (1-2) ◽  
pp. 404-408 ◽  
Author(s):  
H.F. Jiang ◽  
H.C. Lei ◽  
X.B. Zhu ◽  
G. Li ◽  
Z.R. Yang ◽  
...  
Keyword(s):  
Thin Films ◽  
Citric Acid ◽  
Chemical Solution Deposition ◽  
Single Phase ◽  
Chemical Solution ◽  
Solution Deposition

Synthesis and Properties of Mn-Doped (Bi0.5Na0.5)TiO3 Thin Films by Chemical Solution Deposition

2013 ◽  
Vol 582 ◽  
pp. 59-62 ◽  
Author(s):  
Narimichi Makino ◽  
Bong Yeon Lee ◽  
Makoto Moriya ◽  
Wataru Sakamoto ◽  
Takashi Iijima ◽  
...  
Keyword(s):  
Thin Films ◽  
Chemical Solution Deposition ◽  
Room Temperature ◽  
Single Phase ◽  
Ferroelectric Properties ◽  
Hysteresis Loops ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Si Substrates ◽  
Mn Doped

Lead-free ferroelectric (Bi0.5Na0.5)TiO3(BNT) thin films were prepared by chemical solution deposition. BNT and Mn-doped BNT precursor thin films crystallized in the perovskite single phase at 700 °C on Pt/TiOx/SiO2/Si substrates. The leakage current density of the perovskite BNT films, especially in the high applied field region, was reduced by doping with a small amount of Mn. Also, Mn doping markedly improved the ferroelectric properties of the films. 0.5 and 1.0 mol% Mn-doped BNT thin films exhibited well-shaped ferroelectric polarization (P) electric field (E) hysteresis loops at room temperature. Furthermore, the 1 mol% Mn-doped BNT films showed a typical field-induced strain loop, and the effectived33values were estimated to be about 60 pm/V.

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