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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
We present a comprehensive investigation on the dependence of Nd3+ substitution on various properties in [Na0.5Bi0.5âxNdx]TiO3 (NBNT) for x=0â0.1. The structural analysis of XRD measurements revealed a crossover structural phase transition from monoclinic (Cc) to orthorhombic (Pbnm) for composition s0.04â¤xâ¤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
Journal: Journal of Alloys and Compounds - Volume 732, 25 January 2018, Pages 233-239
نویسندگان
Kumara Raja Kandula, Sai Santosh Kumar Raavi, Saket Asthana,