Origin of the high piezoelectric and optical properties of Pr-PMN-PT100x/ 70/30 transparent ceramics
JOURNAL OF ALLOYS AND COMPOUNDS(2024)
Abstract
Piezoelectric ceramics with large piezoelectricity and high transparency are quite challenging due to the light scattering from domain walls. In this work, Pr3+ doped Pb(Mg1/3Nb2/3)0.70Ti0.30O3 (Pr-PMN-PT) ceramics prepared by hot press sintering in oxygen atmosphere showed very high transparency, excellent photoluminescence property and large piezoelectricity simultaneously. The transmittance of Pr-PMN-PT is 69.7% in the near infrared wavelength region. The intensity of emission peak at 650 nm for transparent Pr-PMN-PT is approximately 7 times higher than that for opaque Pr-PMN-PT ceramics. The Pr-PMN-PT ceramics exhibited very large piezoelectric properties with quasi-static piezoelectric constant d33=1220 pC/N and effective piezoelectric constant d & lowast;33= 2040 pm/V. The high transparency, large piezoelectric properties and good photoluminescence make the Pr-PMN-PT ceramics very attractive for many novel electro-optic applications. The origin of the excellent electrical and optic properties of Pr-PMN-PT ceramics was further investigated and it was found that they were strongly correlated with the nano domain structure in Pr-PMN-PT ceramics.
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Key words
Ferroelectric ceramics,Transparent ceramics,Piezoelectricity,Photoluminescence
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