Creep behavior of undoped and La–Nb codoped PZT based micro-piezoactuators for micro-optical modulator applications

Bourim, El Mostafa; Kim, HeeYeoun; Yang, Jeong-Suong; Yang, JuHwan; Woo, Ki-Suk; Song, Jay Hyok; Yun, Sangwoon

doi:10.1016/j.sna.2009.08.020

Cited by 19 publications

(5 citation statements)

References 30 publications

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“…Figure 5b shows a rounding of the Lissajous figure at higher frequency. We attribute this variation to changes in the dielectric constant of PZT with temperature [51][52][53][54][55][56] that would be particularly important at the highest frequency of 5 kHz, when the temperature of the reactor walls reached 70ºC under steady state conditions (effects of the frequency itself on the dielectric constant are negligible [52,57,58]). Similar changes in the shape of the Lissajous curve have been previously reported by other authors and attributed to modifications in the resistive or capacitive behaviour of the reactor [56,59].…”

Section: 3electrical Characterizationmentioning

confidence: 99%

Improving the pollutant removal efficiency of packed-bed plasma reactors incorporating ferroelectric components

Gómez‐Ramírez

Montoro-Damas

Rodríguez

et al. 2017

Chemical Engineering Journal

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Section: 3electrical Characterizationmentioning

confidence: 99%

Improving the pollutant removal efficiency of packed-bed plasma reactors incorporating ferroelectric components

Gómez‐Ramírez

Montoro-Damas

Rodríguez

et al. 2017

Chemical Engineering Journal

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“…Piezoelectric thin films have attracted much interest owing to their excellent potential use in several applications, such as micro-electro-mechanical systems (MEMS), 1,2) because lead-free piezoelectric thin films are very promising for avoiding the toxicity of lead-based compounds. Therefore, many researchers have proposed lead-free materials with high piezoelectric property.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Alkoxide-Derived Lead-Free Piezoelectric Barium Zirconate Titanate Thin Films with Different Compositions

Ohno

Uchida

Sakamoto

et al. 2010

Jpn. J. Appl. Phys.

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Lead-free barium zirconate titanate Ba(Zr1-x Ti x )O3; BZT100x 0≤x≤0.1) thin films were deposited on lanthanum nickel oxide (LNO)/Pt/SiO2/Si substrate by chemical solution deposition (CSD). The Zr content was changed up to x=0.1 to determine the effect of composition on the electrical properties. An LNO buffer layer was selected to control the crystal orientation of BZT thin films. The use of the LNO seeding layer resulted in the highly (100) and (001) oriented BZT100x films for all compositions. The dielectric and ferroelectric properties of the BZT100x thin films depend on the compositions. The d 33 values of the BZT100x thin films measured using the piezoelectric force microscope (PFM) changed in accordance with the crystal symmetry change. The maximum d 33 value was approximately 45 pm/V at BZT3 composition, showing the possibility of lead-free piezoelectric barium zirconate titanate thin films obtained by CSD.

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“…Prior to fatigue treatment, both poled and depoled states showed the same tendency, namely a gradual logarithmic reduction in the displacement with time, which is similar to the conventional creep phenomenon. The creep is thought to originate from the slow switching of the non-180 • domains under a constant dc voltage [25,26]. In that case, the applied electric field is the driving force.…”

Section: Retentionmentioning

confidence: 99%

Fatigue and retention properties of shape memory piezoelectric actuator with non-180° domain switching

Kadota¹,

Morita²

2012

Smart Mater. Struct.

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A shape memory piezoelectric actuator can maintain a piezoelectric displacement without an operating voltage. It has two stable strain states at zero voltage: a poled state and a depoled state. The driving principle of the shape memory piezoelectric actuator is based on reorientation of the non-180° domains in the ferroelectric materials. In this study, a unimorph shape memory piezoelectric actuator with a soft lead zirconate titanate was fabricated. The fatigue and retention properties of this shape memory piezoelectric actuator were investigated. The fatigue behavior of the actuator in the early stages is considered to be closely related to the domain stabilization process. Continuous cycle fatigue tests revealed that the shape memory piezoelectric actuator continues to operate even after 106 cycles. Retention measurements revealed that the depoled state of the actuator was more stable than the poled state. The drift in the actuator displacement over one year was estimated to be less than 10% of the initial shape memory displacement.

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Creep behavior of undoped and La–Nb codoped PZT based micro-piezoactuators for micro-optical modulator applications

Cited by 19 publications

References 30 publications

Improving the pollutant removal efficiency of packed-bed plasma reactors incorporating ferroelectric components

Improving the pollutant removal efficiency of packed-bed plasma reactors incorporating ferroelectric components

Preparation and Characterization of Alkoxide-Derived Lead-Free Piezoelectric Barium Zirconate Titanate Thin Films with Different Compositions

Fatigue and retention properties of shape memory piezoelectric actuator with non-180° domain switching

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