کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7994973 1516162 2018 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Correlation between structural, ferroelectric and luminescence properties through compositional dependence of Nd3+ ion in lead free Na0.5Bi0.5TiO3
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Correlation between structural, ferroelectric and luminescence properties through compositional dependence of Nd3+ ion in lead free Na0.5Bi0.5TiO3
چکیده انگلیسی
We present a comprehensive investigation on the dependence of Nd3+ substitution on various properties in [Na0.5Bi0.5−xNdx]TiO3 (NBNT) for x=0−0.1. The structural analysis of XRD measurements revealed a crossover structural phase transition from monoclinic (Cc) to orthorhombic (Pbnm) for composition s0.04≤x≤0.1. Increase in Nd3+ substitution resulted in larger grain size. Enhanced electrical properties were observed for x=0.01. Dielectric measurements revealed the relaxor behaviour enhances with the content of Nd3+, which is verified with help of bipolar strain loops. The polarization measurements support the evolution of centrosymmetry space group over particular cross over for NBNT with x=0.04. In concomitance with enhanced electrical properties, the luminescence measurements showed the largest emission for x=0.01 for the Nd3+ substituted NBT. The onset of luminescence quenching starts from the substitution of x=0.03 which can be surmised to be due to the effect of centro-symmetric (Pbnm) of orthorhombic structure in addition to the expected concentration quenching effects. The results presented here, establishes the substitution of Nd3+ into the NBT resulted in enhanced electrical and optical properties compared to parent NBT, making these NBNTs promising candidate for multifunctionality applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 732, 25 January 2018, Pages 233-239
نویسندگان
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