High Piezoelectric Performance and Phase Transition in Stressed Lead-Free (1 - x )(K, Na)(Sb, Nb)O3 -x (Bi, Na, K)ZrO3 Thin Films

2017 ◽  
Vol 3 (7) ◽  
pp. 1700033 ◽  
Author(s):  
Yumei Wang ◽  
Kui Yao ◽  
Xian Qin ◽  
Meysam Sharifzadeh Mirshekarloo ◽  
Xiaogang Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Lead Free ◽  
Piezoelectric Performance

Lead-free (Ba,Ca)(Zr,Ti)O3 Based Electrocaloric Devices: Challenges and Perspectives

2013 ◽  
Vol 1581 ◽  
Author(s):  
Gunnar Suchaneck ◽  
Gerald Gerlach
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Electric Fields ◽  
Diffuse Phase Transition ◽  
Lead Free ◽  
Large Temperature ◽  
Temperature Changes ◽  
Diffuse Phase

ABSTRACTIn this work, we analyze the requirement to (Ba,Ca)(Zr,Ti)O3 thin films for applications in electrocaloric devices. We demonstrate that large temperature changes are realized mostly independent of the used material by applying sufficient electric fields. Ferroelectrics exhibiting a diffuse phase transition are beneficial for electrocaloric applications, but they change the range of operational temperatures.

scholarly journals Surface, phase transition and impedance studies of Zr- mutated BaTiO3 lead-free thin films

2019 ◽  
Vol 13 ◽  
pp. 102190 ◽  
Author(s):  
Hakikat Sharma ◽  
R.K. Kotnala ◽  
J. Shah ◽  
N.S. Negi
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Lead Free ◽  
Surface Phase ◽  
Surface Phase Transition

Macroscopic and local approaches of phase transition in sol–gel synthesized (Bi0.5Na0.5)TiO3–SrTiO3thin films

2018 ◽  
Vol 20 (22) ◽  
pp. 15236-15243 ◽  
Author(s):  
Hyun-Young Lee ◽  
Jin Luo ◽  
Zhen Zhou ◽  
Wei Sun ◽  
Jing-Feng Li
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Sol Gel ◽  
Lead Free ◽  
High Quality ◽  
Gel Method ◽  
Sol Gel Method ◽  
Piezoelectric Thin Films

High-quality (1 −x)(Bi0.5Na0.5)TiO3–xSrTiO3lead-free piezoelectric thin films (x= 0, 0.1, and 0.25) on Pt(111)/Ti/SiO2/Si(100) substrates were prepared by a sol–gel method.

scholarly journals LEAD-FREE BNT PIEZOELECTRIC THIN FILMS BY SOL-GEL METHOD.

2016 ◽  
Vol vol1 (1) ◽  
Author(s):  
S. Abou Dargham ◽  
F. Ponchel ◽  
M. Soueidan ◽  
A. Khoury ◽  
J. Assaad ◽  
...  
Keyword(s):  
Thin Films ◽  
Perovskite Phase ◽  
Sol Gel ◽  
Sodium Titanate ◽  
Lead Free ◽  
Piezoelectric Thin Films ◽  
First Results ◽  
Ferroelectric Hysteresis ◽  
Doppler Interferometer ◽  
Piezoelectric Performance

The objective of this work is to synthesize lead-free piezoelectric thin films by the Sol-Gel method:bismuth sodium titanate (Bi0.5Na0.5TiO3 or BNT).BNT films were annealed with the rapid thermal process (RTP).The film treated at 700°C is dense and well crystallized in the perovskite phase. The first results of electricalcharacterizations showed promising dielectric, ferroelectric and piezoelectric performance. At 12 kHz, thedielectric constant and losses are 430 and 0.07, respectively. Ferroelectric hysteresis measurements indicated aremanent polarization of 10μC/cm2, associated with a coercive field of 70 kV/cm. The piezoelectric properties ofBNT films were studied with a laser Doppler interferometer: a piezoelectric coefficient (d33effmax) of 42 pm/V was measured.

High piezoelectric performance of lead-free BiFeO3–BaTiO3 thin films grown by a pulsed laser deposition method

RSC Advances ◽  
2016 ◽  
Vol 6 (108) ◽  
pp. 106899-106903 ◽  
Author(s):  
Jinsu Park ◽  
Myang Hwan Lee ◽  
Da Jeong Kim ◽  
Myong-Ho Kim ◽  
Won-Jeong Kim ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Lead Free ◽  
Silicon Substrates ◽  
Deposition Method ◽  
Piezoelectric Thin Films ◽  
Piezoelectric Performance

Lead-free (100 − x)BiFeO3–xBaTiO3 (BFBTx, x = 0, 30, 33, 40 and 50) piezoelectric thin films were deposited on platinized silicon substrates by using a pulsed laser deposition method.

scholarly journals Boosted piezoelectricity with excellent thermal stability in tetragonal NaNbO3-based ceramics

2020 ◽  
Author(s):  
Lu Wang ◽  
Shengdong Sun ◽  
Huajie Luo ◽  
Yang Ren ◽  
Hui Liu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Temperature Stability ◽  
Lead Free ◽  
Excellent Thermal Stability ◽  
Lead Free Ceramics ◽  
Piezoelectric Performance

The realization of high piezoelectric performance and excellent temperature stability simultaneously in lead-free ceramics is the key for replacing Pb-containing perovskites in industry. In this study, large piezoelectric performance (d33...

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