Strong luminescence and high piezoelectric properties in Pr-doped (Ba0.99Ca0.01)(Ti0.98Zr0.02)O3 multifunctional ceramics
作者： Zhe Wang , Wei Li , Ruiqing Chu , Jigong Hao , Zhijun Xu
DOI: 10.1016/J.JALLCOM.2016.07.307
关键词: Dielectric 、 Doping 、 Materials science 、 Optoelectronics 、 Orthorhombic crystal system 、 Ceramic 、 Curie temperature 、 Analytical chemistry 、 Luminescence 、 Tetragonal crystal system 、 Ferroelectricity
摘要: Abstract (Ba 0.99 Ca 0.01 )(Ti 0.98 Zr 0.02 )O 3 (BCZT) and Pr-doped samples (Pr 0.002 Ba 0.988 (BCZT-A) as well 0.998(Ba -0.002PrO 1.5 (BCZT-W) lead-free piezoelectric ceramics were prepared by conventional solid state reaction method. The structural, dielectric, piezoelectric, ferroelectric luminescence properties of the BCZT systematically studied. orthorhombic-tetragonal (O–T) phase transition temperature decreased obviously, while Curie ( T C ) maintained at 118 °C for both ceramics. BCZT-A exhibited best d 33 = 344 pC/N) P r = 13.042 μC/cm 2 ). Meanwhile, desired (bright reddish-orange light, emission peak centered 649 nm) obtained under an excitation 448 nm at room BCZT-W better than those Asymmetric structure, coexistence orthorhombic tetragonal phases less oxygen vacancies in could result improved simultaneously. These results suggest that have potential application a multifunctional device integrating its excellent electrical properties.
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