Spectroscopic approach to understanding complex impedance in sodium silicate

Q2 Physics and Astronomy
Md Ayub Sheikh , Sudhangshu Chakraborty
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引用次数: 0

Abstract

This study investigates the complex impedance spectroscopy (CIS) of sodium silicate (Na₂SiO₃) across various frequencies and temperatures to examine the influence of grain and grain boundary polarization on its electrical properties. The findings reveal a non-Debye relaxation behavior, deviating from ideal relaxation models typically observed in such materials. Both dielectric relaxation and dispersion effects contribute to the polaron-controlled hopping mechanism evident in the CIS data.The Nyquist plot exhibits a single semicircular arc, indicating that grain boundary polarization is the dominant factor affecting the impedance of sodium silicate. Additionally, the study explores the correlated barrier-hopping model, providing insights into AC conductivity behavior across different frequency ranges. This comprehensive analysis enhances the understanding of sodium silicate's electrical properties, which is crucial for potential applications in materials science, particularly in contexts where polarization effects and conductivity mechanisms play a key role. Beyond fundamental insights, the research offers practical implications for optimizing material performance in related fields.
理解硅酸钠中复杂阻抗的光谱方法
本文研究了硅酸钠(Na₂SiO₃)在不同频率和温度下的复阻抗谱(CIS),以研究晶粒和晶界极化对其电学性能的影响。研究结果揭示了非德拜松弛行为,偏离了在此类材料中通常观察到的理想松弛模型。介质弛豫和色散效应都有助于极化子控制的跳变机制。Nyquist曲线呈单一半圆弧,表明晶界极化是影响硅酸钠阻抗的主要因素。此外,该研究还探索了相关的跳垒模型,为不同频率范围内的交流电导率行为提供了见解。这种综合分析增强了对硅酸钠电性能的理解,这对于材料科学的潜在应用至关重要,特别是在极化效应和电导率机制起关键作用的背景下。除了基本见解之外,该研究还为优化相关领域的材料性能提供了实际意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Physics Open
Physics Open Physics and Astronomy-Physics and Astronomy (all)
CiteScore
3.20
自引率
0.00%
发文量
19
审稿时长
9 weeks
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