Characterization of Lead Lanthanum Zirconate Titanate Ceramics Co-Doped with Lanthanide Ions

Abstract

The aim of this work was to obtain Pb0.92(La0.08)(Zr0.65Ti0.35)0.98O3 materials co-doped with two different lanthanide ions (Ln3+) and characterization how they influence on the physical properties of prepared 8/65/35 PLZT: Ln3+ ceramics. As a co-dopant, praseodymium (Pr3+) and neodymium (Nd3+) ions were used at the concentration of 0.0 and 0.5 wt.% respectively. The ceramic powders of 8/65/35 PLZT, PLZT:Pr3+ as well PLZT:Nd3+ were synthesized by conventional ceramic route, from high purity raw oxide materials (>99,9%). All compositions of the ceramic samples were sintered via single time process at Ts=1200°C/3h, by the hot uniaxial pressing method. Performed measurements have shown dependence of used dopant on structure, microstructure, and dielectric as well optical properties of the fabricated 8/65/35 PLZT: Ln3+ materials.

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

“…Since the (Pb 0.91 La 0.09 )(Zr 0.65 Ti 0.35 ) 0.9975 O 3 transparent ceramics show excellent optical quality and ferroelectric properties due to their relaxor-like properties, they have become interesting for applications in many electro-optical devices [22][23][24][25][26][27][28]. By doping with rare earth metals, 9/65/35 PLZT ceramics can become a multifunctional (smart) material [29][30][31]. This solid solution system, with bright ecru colors, can be an attractive ceramic matrix (host material), for example, for praseodymium ions (Pr 3+ ); consequently, it can be expected that not only dielectric and ferroelectric properties but also luminescent properties will be obtained [21,32].…”

“…Doping with Pr 3+ ions will provide a red emission signal, and it is expected that this process may also enhance the dielectric and ferroelectric properties [36]. The dielectric properties of PLZT doped with rare earth metals have been improved many times [30,31,37]. In emission, it can be induced by excitation with both UV and blue light.…”