Investigation of Praseodymium Ions Dopant on 9/65/35 PLZT Ceramics' Behaviors, Prepared by the Gel-Combustion Route

Małgorzata Płońska; Julian Plewa

doi:10.3390/ma16237498

Investigation of Praseodymium Ions Dopant on 9/65/35 PLZT Ceramics' Behaviors, Prepared by the Gel-Combustion Route

Materials (Basel). 2023 Dec 4;16(23):7498. doi: 10.3390/ma16237498.

Authors

Małgorzata Płońska¹, Julian Plewa¹

Affiliation

¹ Faculty of Science and Technology, Institute of Materials Engineering, University of Silesia in Katowice, 75 Pułku Piechoty Street 1a, 41-500 Chorzów, Poland.

Abstract

In this work, were synthesized (Pb_0.91La_0.09)(Zr_0.65Ti_0.35)_0.9775O₃ ceramic materials with different concentrations of praseodymium (0, 0.1, 0.3, 0.5, 1 wt.%) via gel-combustion route and sintered by the hot uniaxial pressing method. Measurements were conducted on the obtained ceramics using X-ray powder diffraction (XRD), scanning electron microscope (SEM), EDS analysis, and examination of dielectric and ferroelectric optical properties. Results give us a detailed account of the influences of the praseodymium ions on the structural, microstructural, and dielectric properties. 3D fluorescence maps and excitation and emission spectra measurements show how a small admixture changes the ferroelectric relaxor behavior to an optically active ferroelectric luminophore.

Keywords: PLZT; Pr3+-dopant; dielectric materials; gel-combustion synthesis; luminescent ceramics.

Grants and funding

The present paper was financed in part by the Polish Ministry of Education and Science within the statutory activity.