Photostriction effect and electric properties of La-doped PMN-PT transparent ferroelectric ceramics

Ferroelectric ceramics display a remarkable photostriction effect, which could facilitate the prevention of electromagnetic interference and promote the integration and miniaturization of actuator systems, indicating potential applications in glimmer sensors. In this work, highly transparent La-dope...

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Bibliographic Details
Published in:International journal of smart and nano materials 2024-04, Vol.15 (2), p.296-311
Main Authors: Song, Zhiqiang, Zhang, Zhuo, Yu, Yirong, Lin, Dabin
Format: Article
Language:English
Subjects:
Actuators
Ceramics
Deformation
Doping
Electric potential
Electric properties
Electromagnetic interference
ferroelectric
Ferroelectric materials
Ferroelectricity
Luminous intensity
Perovskite structure
Perovskites
Phase transitions
Photostriction
piezoelectric
Raman
Solid phases
Straight lines
Transition temperature
Ultraviolet radiation
Voltage
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Summary:Ferroelectric ceramics display a remarkable photostriction effect, which could facilitate the prevention of electromagnetic interference and promote the integration and miniaturization of actuator systems, indicating potential applications in glimmer sensors. In this work, highly transparent La-doped 0.9Pb(Mg 1/3 Nb 2/3 )O 3 -0.1PbTiO 3 (0.9PMN-0.1PT) ceramics were synthesized using a solid-state reaction method in an oxygenated atmosphere. XRD and SEM were used to analyze the phase structure of the dense samples, which displayed a pure perovskite structure, with no trace of a pyrochlore phase. With La doping, the phase transition temperature shows a decreasing trend, and its dielectric constant could reach up to 20,000. The P-E loop of the samples was gradually refined into a straight line with an increase in the doping amount. After La doping, the transparency of the 0.9PMN-0.1PT ceramics was significantly enhanced and reached up to 61% at the near-infrared band. Finally, the photogenerated voltage and deformation of the La-doped 0.9PMN-0.1PT ceramics were investigated under ultraviolet light of various intensities. After 20 s of irradiation at an intensity of 800 mW/cm 2 , the maximum voltage and deformation, with values of 40 V and 250 nm, respectively, were both found in the 1%La-doped 0.9PMN-0.1PT ceramics.
ISSN:1947-5411
1947-542X
DOI:10.1080/19475411.2024.2326939